Month: August 2019

Chemists devise a way to create a five point knotted molecule

first_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Tying molecules in knots Explore further Called a pentafoil, the five point knot is the most complex kind of molecule synthesized from other building blocks, other than those found in DNA, and having a means for building them could lead to all sorts of new materials that could be both strong and flexible.To build the molecule, the team started with a negatively charged chloride ion, to serve as a pulling force, or anchor. They then added other parts, such as iron ions with a positive charge, and chains of carbon atoms. They then chemically “programmed” the whole works to assemble itself into the pentafoil, with five chains looped over and under one another and connected to form one single knotted strand, with a single chloride ion sitting squarely in the center holding the whole knot together. The finished product is made up of just 160 atoms and very much resembles a traditional two-dimensional five pointed star.As an interesting side note, the researchers found that if they removed the single chloride ion after the knot was completed, they were left with a molecule that was hungry for that missing ion, which could mean they’ve found a new type of chlorine sensor.In devising a means to create a pentafoil, the researchers have created not just a new type of man-made molecule, but a blueprint for creating other types of knotted molecules which could lead to all sorts of new and exotic materials. Citation: Chemists devise a way to create a five point knotted molecule (2011, December 30) retrieved 18 August 2019 from ( — Chemists have for a long time been interested in a type of molecule that is literally tied up into a knot. This is where atoms are bonded together to form strands, which are then twisted around one another in a way that looks very much like a length of rope tied into an everyday knot. Such molecules when used to make whole structures can provide both strength and elasticity. Unfortunately, forcing atoms to bind together in ways that result in knotted molecules has proven to be an especially difficult task; so much so, that until now, no one has been able to make a molecule that has more than three points. Now, researchers at the University of Edinburgh, have figured out a way to create one with five points, as they describe in their paper published in Nature Chemistry, essentially creating what looks like a flat five point star.center_img More information: A synthetic molecular pentafoil knot, Nature Chemistry 4, 15–20 (2012) doi:10.1038/nchem.1193AbstractKnots are being discovered with increasing frequency in both biological and synthetic macromolecules and have been fundamental topological targets for chemical synthesis for the past two decades. Here, we report on the synthesis of the most complex non-DNA molecular knot prepared to date: the self-assembly of five bis-aldehyde and five bis-amine building blocks about five metal cations and one chloride anion to form a 160-atom-loop molecular pentafoil knot (five crossing points). The structure and topology of the knot is established by NMR spectroscopy, mass spectrometry and X-ray crystallography, revealing a symmetrical closed-loop double helicate with the chloride anion held at the centre of the pentafoil knot by ten CH···Cl– hydrogen bonds. The one-pot self-assembly reaction features an exceptional number of different design elements—some well precedented and others less well known within the context of directing the formation of (supra)molecular species. We anticipate that the strategies and tactics used here can be applied to the rational synthesis of other higher-order interlocked molecular architectures. © 2011 Journal information: Nature Chemistry X-ray crystal structure of molecular pentafoil knot [6]Cl(PF6)9. Image: Nature, doi:10.1038/nchem.1193last_img read more

New ideas add further mystery to why there is less lithium7 in

first_img Explore further This artist’s concept shows a galaxy with a supermassive black hole at its core. The black hole is shooting out jets of radio waves. Image credit: NASA/JPL-Caltech Citation: New ideas add further mystery to why there is less lithium-7 in the universe than expected (2012, July 20) retrieved 18 August 2019 from © 2012 ( — Thirty years ago, cosmologists Monique and François Spite of the Paris Observatory, turned the world of astrophysics upside down when they noticed that there appeared to be a distinct lack of lithium-7 in old stars in the halo of the Milky Way, which led to questions about why there wasn’t more as expected by theories about the Big Bang. Since then, more research has shown that lithium-7 simply refuses to conform to models and theories about how the universe began; there’s just not enough of it. Now, things have grown worse as researchers Fabio Iocco and Miguel Pato from Stockholm University and Technische Universität in Munich, have published a study in Physical Review Letters describing what they believe is lithium-7 production by certain black holes. Astrophysicist team suggests axions could explain dearth of lithium-7 in dark matter theorycenter_img Journal information: Physical Review Letters Current theory holds that some fourteen billion years ago, the Big Bang occurred and everything we know came about as a result. In those first few moments afterwards, elements were formed and persist to this day. Modeling of the Big Bang has found that all of the elements in existence conform to theories suggesting how much of each should exist. Except for lithium-7. For some reason, there is approximately just a third of what there should be and astrophysicists don’t know why. Now, new research suggests that there should be even more, maybe twice what was originally thought.Iocco and Pato, in looking at x-ray sources that come from binary star arrangements that are thought to harbor black holes, have found what appears to be torus shaped matter (from one of the stars) swirling around and towards the gravity source. In doing the math, they calculate that the matter nears the speed at which light travels as it approaches, reaching temperatures of 100 billion K. Under those conditions, the duo suspect that helium nuclei colliding could result in the creation of lithium-7, which if true would mean that there is even more of the stuff missing than researchers had first thought. They write that if something on the order of 1% of such systems are producing helium-7, the amount of it produced would equal as much as is believed to have been created after the Big Bang.Astrophysicists have suggested a lot of theories to explain the dearth of helium-7, but thus far, none have panned out, and none of them are proposing that the original ideas used to describe how much there should be, are wrong. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. More information: Lithium Synthesis in Microquasar Accretion, Phys. Rev. Lett. 109, 021102 (2012). DOI:10.1103/PhysRevLett.109.021102 (Arxiv pre-print: )AbstractWe study the synthesis of lithium isotopes in the hot tori formed around stellar mass black holes by accretion of the companion star. We find that sizable amounts of both stable isotopes 6Li and 7Li can be produced, the exact figures varying with the characteristics of the torus and reaching as much as 10-2M⊙ for each isotope. This mass output is enough to contaminate the entire Galaxy at a level comparable with the original, pregalactic amount of lithium and to overcome other sources such as cosmic-ray spallation or stellar nucleosynthesis.last_img read more

Qcloud project to allow online users a taste of quantum computing

first_img Quantum computing with recycled particles Officials with Bristol University in the U.K. have announced at this year’s British Science Festival, that they intend to put their two-quantum bit (qubit) processor online for use by some people on the Internet. Called the Qcloud project, the idea is to get scientists, those in academics and even the general public used to the idea of quantum computing so as to be prepared when real quantum computers arrive. © 2013 Explore further Citation: Qcloud project to allow online users a taste of quantum computing (2013, September 13) retrieved 18 August 2019 from More information: … ntum/qcloud/project/ 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 computers are based on quantum processors that use qubits instead of electricity to represent data. The processor at Bristol computes results by first firing two photons from a blue laser—special optics cause them to become entangled. Programming is done via phase shifters which alter the speed of the photons. The idea is that quantum computers—because a qubit can exist in multiple states at once, allowing it to generate multiple solutions to a problem simultaneously—should be able, eventually, to far outstrip the abilities of current machines. Most computer scientists believe it’s only a matter of time before truly useful quantum computers are built and put into service—estimates range from a couple of years to a couple of decades.The Qcloud quantum “computer” is housed at the Centre for Quantum Photonics on the University’s campus. Because it uses just two qubits, the machine isn’t capable of doing much, but that isn’t the point. Instead, it’s to get people ready for the time when such computers become a reality. Bristol officials note that currently there are just a handful of people who have any idea of how to program a real quantum computer.To prevent a glut of programs that don’t work from accessing the real computer, Bristol will first require prospective programmers to create a program on a web based simulator. If users are optimistic about their results, they can then submit them for review. If the program they’ve written is deemed worthy, it will be run on the real quantum processer. The university has already made the simulator available online—the processor will be made accessible via the Internet next week, September 20.By providing access to a real quantum computer, officials at Bristol are hoping to excite the next generation of programmers who will be creating new types of code that hasn’t even been envisioned yet.last_img read more

Quantum thermal transistor can control heat currents

first_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. World’s first successful use of an electric circuit to compensate for distortions in electric signals due to heat The researchers, Karl Joulain et al., at the University of Poitiers and CNRS in France, have published a paper on the quantum thermal transistor in a recent issue of Physical Review Letters.”To manage electricity, one uses electronic diodes, transistor and amplifiers,” Joulain told “We would like to do the same thing with thermal currents. We would like to make logical thermal circuits in the same way electronic thermal circuits have been designed. In this way, wasted heat could be guided, switched on or off, amplified or modulated.”Although this is not the first thermal transistor, it is the first that is made of quantum objects. Other thermal transistors are made with macroscopic materials, such as solids or phase change materials. The new quantum thermal transistor consists of three two-level systems, meaning they have two states. These systems can be implemented as spins, where each spin can be in either the up state or the down state. Any one of these spin systems can control the heat current flowing through the other two. The researchers theoretically demonstrated that the thermal current can be controlled, modulated, and amplified by a sufficiently large amount so that it can switch the spins between their two states, producing a transistor effect. The transistor could be used to control thermal currents in a variety of nanostructures made of quantum objects. In the future, for instance, the device could in principle be fabricated with quantum dots embedded in nanoparticles.”My future research plans are to optimize the device and of course to find collaborations to make the experiment at the quantum level,” Joulain said. The quantum thermal transistor consists of three two-level systems, which can be implemented as spins with an up and a down state. Any one of these systems can control the heat current that flows to the other two, resulting in switching their spins. Credit: Joulain et al. ©2016 American Physical Society (—Researchers have designed a quantum thermal transistor that can control heat currents, in analogy to the way in which an electronic transistor controls electric current. The thermal transistor could be used in applications that recycle waste heat that has been harvested from power stations and other energy systems. Currently, there are methods for transporting and guiding this heat, but not for controlling, amplifying, and switching the heat on and off, as the quantum thermal transistor can do. Citation: Quantum thermal transistor can control heat currents (2016, May 31) retrieved 18 August 2019 from © 2016 Explore further More information: Karl Joulain et al. “Quantum thermal transistor.” Physical Review Letters. DOI: 10.1103/PhysRevLett.116.200601. Also at arXiv:1602.04175 [quant-ph] Journal information: Physical Review Letterslast_img read more

Physicists propose first method to control single quanta of energy

first_imgIn the proposed experiment, two energy reservoirs (S and D) made of trapped ions transport energy quanta to each other by coupling to the spins in a quantum magnet placed between them. Credit: Alejandro Bermudez and Tobias Schaetz, New Journal of Physics. CC-BY-3.0 (—Physicists have proposed what they believe to be the first method to control the transport of energy at the level of single energy quanta (which are mostly phonons). They show that it’s theoretically possible to control the flow of single energy quanta through a quantum magnet using lasers with carefully controlled frequencies and intensities. Explore further Journal information: New Journal of Physics More information: Alejandro Bermudez and Tobias Schaetz. “Quantum transport of energy in controlled synthetic quantum magnets.” New Journal of Physics. DOI: 10.1088/1367-2630/18/8/083006 Citation: Physicists propose first method to control single quanta of energy (2016, August 29) retrieved 18 August 2019 from If implemented, the method could allow researchers to explore quantum energy transport phenomena that are expected to be completely different than what is observed in macroscopic energy transport. In general, understanding energy transport in small-scale devices could lead to the development of methods for reducing the energy dissipation in shrinking computer hardware (however, the researchers note that computer hardware differs from the particular setup proposed here).The scientists, Alejandro Bermudez, at the Institute of Fundamental Physics in Madrid, Spain, and Tobias Schaetz, at the Albert Ludwigs University of Freiburg and the Freiburg Institute for Advanced Studies, both in Freiburg, Germany, have published a paper on their proposed method in a recent issue of the New Journal of Physics. “We have identified a new quantum mechanism that would allow to control the transport of energy/heat at the level of single energy quanta,” Bermudez told “This mechanism can be considered as an analogue of Coulomb blockade in electronic nanodevices, and we have proposed to test it using experiments with crystals of self-assembled trapped atomic ions.”In the study, the scientists propose building an energy reservoir using trapped magnesium ions. By using a laser to heat and cool the ions, the ions can be made to absorb or release tiny amounts of energy, acting as tiny energy reservoirs. Then to transport the energy, the researchers propose placing a synthetic quantum magnet—which consists of a long line of magnetic spins that form a chain—between two energy reservoirs. When the reservoirs are coupled to the spins in the magnet, they can exchange energy with each other in the form of single phonons. In this way, quantum-scale energy transport occurs across the spin chain. The scientists explain that energy transport at the quantum level can be thought of as analogous to charge (electron) transport at the quantum level, which has already been well-documented. Just as single-electron transport is very different than bulk electron transport, quantum energy transport is expected to be very different than energy transport on a large scale. © 2016 Long-distance transport of electron spins for spin-based logic devices One particular phenomenon associated with single-electron transport, which is not observed at larger scales, is called the Coulomb-blockade effect. In nanoscale electronic devices, electrons must gain a certain level of charging energy in order to tunnel across a barrier. When one electron manages to gain this energy and tunnel, it blocks the simultaneous tunneling of other electrons because additional electrons would require additional energy. The resulting blockade effect violates Ohm’s law of charge transport, and results in only one electron tunneling at a time.In the new study, the physicists theoretically demonstrated that an analogous Coulomb-blockade effect occurs with nanoscale heat transport, which again does not appear at larger scales. The scientists derived a quantum master equation for the transport of energy that shows that there is a “transport window” that defines the energy level needed for energy quanta to travel through a quantum magnet. Similar to the situation with electrons, energy transport is blockaded when the energy quanta do not have sufficient energy. This effect, which the researchers call the Ising blockade effect, violates Fourier’s law of heat conduction and results in the transport of only one energy quantum at a time.If the proposed experiment can be realized, the researchers expect to observe the Ising blockade effect along with many other interesting quantum effects in energy transport that so far have been restricted to electronic currents. At this stage, it’s difficult to tell what applications quantum energy transport may have.”If the same effect can be shown to be more general, and applicable to other physical setups, it may yield unexpected applications similar to single-electron electronics in Coulomb-blockaded devices,” Bermudez said.One of the biggest challenges to realizing the experiment will be to design a device that can directly measure such tiny amounts of heat energy.”We are considering exploring this type of physics in the laboratory of my coauthor, Professor Schätz, at the University of Freiburg,” Bermudez said. “Although the experimental requirements to implement the proposed scheme are stringent, Professor Schätz leads a world-class team of fantastic researchers with the required technology to face this challenge.” 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

Astronomers detect a strong outburst of an embedded young stellar object

first_img High-redshift quasar discovered by Pan-STARRS Citation: Astronomers detect a strong outburst of an embedded young stellar object (2017, January 3) retrieved 18 August 2019 from 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. UKIDSS-J185318.36+012454.5 is located in the vicinity of the IRAS 18507+0121 source and probably belongs to the massive star-forming region associated with GAL 034.4+00.23 HII region. The object is at least 5,000 light years away from the Earth and its neighborhood contains massive protostars with an age of about 100,000 years, as well as a low-mass stellar population approximately 1 million years old. The stellar object was classified as an intermediate mass YSO less than 100,000 years old.Recently, a team of researchers led by Elena Nikoghosyan has combed through the data and images provided by the United Kingdom Infrared Telescope (UKIRT) in Hawaii to search for evidence of outbursts in star-forming regions. They used the archival infrared and submillimeter data from UKIRT Galactic Plane Survey (UKIDSS GPS) and found that an outburst occurred in UKIDSS-J185318.36+012454.5 in the period of 2004-2006.”UKIRT Galactic Plane Survey is a deep survey with good space resolution. Therefore, it provides very useful information for researchers who study star forming regions. In particular, for detection of UKIDSS-J185318.36+012454.5 outburst, UKIRT Galactic Plane Survey was the basic source of information,” Nikoghosyan told to the paper, the amplitude of brightness of the detected outburst is at least five mag. The object remained at this level of brightness until 2014.The results of the research allowed the scientists to re-classify UKIDSS-J185318.36+012454.5 as an eruptive variable with mixed characteristics, namely a MNor-type object, and Nikoghosyan emphasized the significance of the study.”Eruptions of pre-main sequence stellar objects are rare events, thus a new outburst is always noteworthy. And I think that the discovery of a new eruptive variable UKIDSS-J185318.36+012454.5 with a so strong outburst (delta K > 5 mag) was a big success,” she said.The authors of the paper also sought the most plausible explanation for eruptive variability of young stars. They noted that several physical mechanisms, such as rotation, cool or hot spots, accretion-driven wind and outflow can explain the near-infrared variability, but these mechanisms often produce short-term variability with amplitude that is not expected to exceed one mag in the K band.”In our opinion, all of the proposed explanations of this phenomena to date (eruptive variability of young stars) do not explain it completely, most likely due to lack of information. With respect to this object, we can only assume that this outburst corresponds to the transition between two evolution stages: Class 0 (no optical and near-infrared emission) and Class I (generally optically obscured). But this is only an assumption,” Nikoghosyan concluded.The researchers now plan further observations of UKIDSS-J185318.36+012454.5. However, these studies could only be conducted in collaboration with scientists from other countries due to the fact that in Armenia, there is no opportunity to observe this object in the infrared range. The images of UKIDSS-J185318.36+012454.5 in different wavelengths: Ks band from Varricatt et al (2010) (left top), Ks band from DR6 UKIDSS GPS (right top), [3.6] μm band from GLIMPSE I survey (left bottom) and [5.8] μm band from GLIMPSE I survey (right bottom). The position of IRAS 18507+0121 source from IRAS PSC and IRAS PSC/FSC Combined Catalogue (Abrahamyan et al., 2015) marked by black and white crosses respectively. On DR6 UKIDSS GPS Ks image are marked three stellar sources (#43, 49 and 54, Shepherd et al., 2004). Credit: Nikoghosyan et al., 2016. More information: New eruptive variable in the massive star-forming region associated with IRAS 18507+0121 source, arXiv:1612.09190 [astro-ph.SR] We report the discovery of a strong outburst of the embedded young stellar object (YSO), namely UKIDSS-J185318.36+012454.5, located in the star-forming region associated with IRAS 18507+0121 source and GAL 034.4+00.23 HII region. Methods. Using the archival photometric data and images we determined the amplitude and the epoch of the outburst, as well as the evolution stage and the basic parameters of the object. Results. According to the near and mid-infrared colors and spectral energy distribution, we classify the object as an intermediate-mass young stellar object (YSO) with Class 0/I evolution stage. The outburst occurred in the period of 2004-2006. The amplitude of brightness is as least Ks = 5.0 mag. The summation of the photometric and spectral data does not allow to classify UKIDSS-J185318.36+012454.5 as FUor or EXor. We can consider it as an eruptive variable with mixed characteristics or MNor type object. (—Astronomers from the Byurakan Astrophysical Observatory in Armenia have discovered a strong outburst of the embedded young stellar object (YSO) designated UKIDSS-J185318.36+012454.5. This newly detected event could provide important insights for the understanding of eruptive variability of young stars. The researchers presented their discovery in a paper published Dec. 30 on the arXiv preprint server. Explore further © 2017 Phys.orglast_img read more

Researchers find more evidence of 14thcentury tsunami that wiped out Sumatran villages

first_img Project staff recording carved Muslim gravestone that was displaced by the 2004 Indian Ocean tsunami. Credit: Patrick Daly. More information: Patrick Daly el al., “Archaeological evidence that a late 14th-century tsunami devastated the coast of northern Sumatra and redirected history,” PNAS (2019). Journal information: Proceedings of the National Academy of Sciences Strong quake hits east Indonesia; no tsunami threat Project staff recording carved Muslim gravestone that was displaced by the 2004 Indian Ocean tsunami. Credit: Patrick Daly. Project staff recording a stone defensive fortification built by Iskandar Muda along the Aceh coast. Credit: Patrick Daly. Project staff recording a stone defensive fortification built by Iskandar Muda along the Aceh coast. Credit: Patrick Daly. A team of researchers with members from Singapore, Indonesia, Ireland and the U.K. has found more evidence of a tsunami approximately 600 years ago that destroyed communities in the same part of Sumatra as the 2004 tsunami. In their paper published in Proceedings of the National Academy of Sciences, the group describes their study of gravestones and pottery in the area and what they found.center_img © 2019 Science X Network The Indian Ocean tsunami of 2004 was devastating, killing over 280,000 people and displacing millions. The tsunami was caused by an earthquake just off the coast of Sumatra, one of the islands that make up Indonesia. One of the hardest-hit areas was the province of Aceh—fatalities there were approximately 160,000. In this new effort, the researchers have found more evidence of a similar tsunami striking the same region in 1394.Geologic evidence uncovered after the 2004 tsunami showed that there had been another tsunami 600 years earlier, but there was little evidence indicating how powerful or devastating it had been. The work by the new team began when one of its members came across several Muslim gravestones that had been uncovered by the 2004 tsunami. The researchers began searching in earnest for other evidence of people living in the area before and after the earlier tsunami.The researchers report that they found evidence of 10 settlements in the area, nine of which had been completely destroyed by the 1394 tsunami. The 10th settlement was on a hilltop beyond the reach of the giant waves. Study of ceramics from the period showed the destroyed communities dated back to the 11th and 12th centuries. Study of the surviving settlement showed that the ceramics in the area from that time period came from as far away as Syria and China. It, too, suffered from the tsunami, however, as it went into decline after the tsunami. The researchers also found evidence that showed Muslim traders moving in to establish new communities where the old ones had stood. The researchers believe these people eventually established an Islamic kingdom known as the Aceh Sultanate. They further suggest that studies like theirs could provide more information regarding what happens to regions that are destroyed by tsunamis. Explore further Project staff member recording broken medieval carved stone grave marker. Credit: Patrick Daly. Citation: Researchers find more evidence of 14th-century tsunami that wiped out Sumatran villages (2019, May 28) retrieved 18 August 2019 from 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

UP to set up panel for single window nod to GAIL pipeline

first_imgThe setting up of the panel will give a “boost to the speedy implementation” of the pipeline that originate in Uttar Pradesh and ends in West Bengal, the company said in a statement here.The long-delayed Jagdishpur-Haldia pipeline is one the projects that form part of Prime Minister Narendra Modi’s vision of adding 15,000 km of pipeline network in the country in five years. “The pipeline will bring growth in UP as the fertiliser plant of Fertilizer Corporation of India at Gorakhpur may be revived with central government support,” it said. Also Read – I-T issues 17-point checklist to trace unaccounted DeMO cashAlso, new City Gas Distribution networks for retailing CNG to automobiles and piped cooking gas to households are expected to come up in Varanasi, Allahabad, Azamgarh and Gorakhpur. “This will contribute in generating additional revenue for the state government,” it said.The decision to set up the committee was taken at a meeting between senior state government and GAIL officials in Lucknow which was presided over by UP Chief Secretary Alok Ranjan. GAIL Director (Projects) Ashutosh Karnatak, who headed the GAIL team, apprised about existing as well as upcoming infrastructure of GAIL in UP. “For timely execution of the project, GAIL requested for support from the UP Government and it was agreed to constitute the high power committee consisting of officials of various departments for Single Window Clearance,” it said. Also Read – Lanka launches ambitious tourism programme to woo Indian touristsThe committee will help in securing various statutory clearances like forest, environments, PWD, irrigation, industries, and also give administrative support for the pipeline construction activities.During the meeting, the Chief Secretary declared that Sanjiv Saran, Principal Secretary, Infrastructure & Industrial Development, UP would be nodal officer to coordinate all the activities related to Jagdishpur-Haldia pipeline project. The nodal officer will review the activities on fortnightly basis.last_img read more

Cocaine worth Rs 50 cr recovered at IGI Airport

first_imgIn what is believed to be the largest cocaine recovery so far in India, two South African women and a Ghana national have been apprehended, with around 9.6 Kgs of cocaine recovered from their possession, at the Indira Gandhi International Airport in Delhi on Tuesday morning. The value of the cocaine consignment was estimated to be around Rs 50 crore in the international market The accused women took an Emirates flight from Brazil and arrived at India after a short halt in Dubai. They were reported to be caught red-handed by sleuths of Narcotics Control Bureau (NCB) at terminal 3 of the IGI airport around 9.20 am on Tuesday, said an NCB official. He further informed that the accused women had hidden the drugs in cavities inside their baggage. The Ghana national, who has been living in Delhi for around the past two years, had allegedly come to receive the consignment.“Investigation of the case is underway and we are expecting to recover more from them, who are suspected to be members of an international drugs syndicate,” the NCB official added.NCB sources believe this to be the highest cocaine recovery by any agency so far, in India. In 2012, NCB had recovered 7 kg cocaine in Delhi, which was reported to the highest recovery till Tuesday.last_img read more

SC seeks details of cases lodged in trafficking of girls

first_imgThe Supreme Court on Tuesday asked all states and Union Territories (UTs) to furnish details to the Centre of cases registered by them for the offence of trafficking of girls for sexual exploitation during 2014 to September 30, 2015.Expressing concern over trafficking of girls, a three judge bench headed by Justice A R Dave asked the Union Cabinet Secretary to set up a high-powered inter-ministerial committee to deal with the issue.The bench, also comprising Justices Madan B Lokur and Kurian Joseph, sought a report by November 15 on the progress made in setting up of the Organised Crimes Investigating Agency (OCIA) for investigating the cases of human trafficking as such offences involve many states.It asked all states and UTs to provide the data of FIRs, registered between 2014 to September 30, 2015 with regard to girl child trafficking under certain provisions of the IPC and the Immoral Traffic (Prevention) Act, to the Ministry of Home Affairs (MHA) within a fortnight. The MHA will collate the data and will file an affidavit before November 18, the next date of hearing, the court said.During the hearing, the court hailed the steps taken by the Centre and National Legal Services Authority (NALSA) on issues like prevention, rescue and rehabilitation of the victims of trafficking for commercial and sexual exploitation.The counsel for the Centre on Tuesday referred to the recent Central Advisory Committee meeting in which states and UTs were invited and they discussed the report of NALSA.NALSA had suggested roles of various stakeholders in the prevention, rescue and rehabilitation of victims of trafficking for commercial and sexual exploitation and had sought a direction to the Centre that the OCIA be set up to investigate the cases of human trafficking and organised crime.last_img read more

Astrology tips to follow before getting hitched

first_imgCompatibility between partners is a very significant point to consider before taking the plunge into marriage. To avoid broken marriages, check the zodiac signs and choose the right astrology advisors, says an expert.Matchmaking Vedic Astrology has gained prominence lately as it offers various tools and remedies for promoting happy, prosperous and stable marriages.The matchmaking astrology essentially deals with flawless and scrupulous matching of the birth horoscopes of the two concerned persons.  Also Read – ‘Playing Jojo was emotionally exhausting’Guna Milan, Manglik analysis, analysis of other Doshas and Yogas etc  are some of the time-tested methods of astrology through which it provides its recommendation to be followed before finalising any matrimonial alliance.Here are some tips by Punit Pandey, an expert at astrology site, for a blissful married life: * Apart from zodiac signs, compatibility of several other elements is essential: Zodiac signs consist of only one aspect of Guna Milan or Vedic method of horoscope matching. Zodiac signs may indicate about basic inclinations and tendencies, but several other factors like birth chart and Dasha are required to be considered before predicting anything with greater certainty during the course of match-making for marriage. Also Read – Leslie doing new comedy special with Netflix* Key points to consider while horoscope matching of the prospective couples: According to Ashtakoota system, there are eight different aspects that are judged during the matchmaking which include mental compatibility, sexual compatibility, understanding and behaviour. As per Vedic Astrology, all these aspects should be compatible for a peaceful, promising and enjoyable married life. All these different aspects hold different points summing up to 36 and minimum points required for an agreeable marriage to take place is 18. * Choosing the right astrology advisorsMarriage is an important milestone in one’s life and so, it should be done with proper understanding. The most pivotal thing to take care about is proper calculations and in-depth analysis. If these two things are taken care of, a good life is almost assured.last_img read more

Broadway culture will be in India soon Hasan

first_imgPlaywright Saif Haider Hasan, known for directing dramas like Ek Mulaqaat and Gardish Mein Taare, says the concept of commercial theatre is changing and India will soon attract Broadway-like culture with bigger names from cinema taking a plunge.Hasan, whose latest play Mr and Mrs Murarilal was fronted by actor-director Satish Kaushik and TV actress Meghna Malik, is known for roping in big names for his dramas.“The concept of commercial theatre is undergoing a change. Earlier, the commercial theatre had a lot of gimmicks. There was high production quality but the content would be in the zone of a drawing room comedy, a sex comedy or maybe a spoof or an adaptation. Also Read – Add new books to your shelfAll these were primarily English theatres or adaptation of Broadway,” says Hasan. The playwright says there was no commercial theatre in Hindi, which is limited to regions like Delhi, which has a very strong culture because of NSD, and Bombay (Prithvi theatre).“In Bombay, there was Marathi theatre, which was the theatre of the rebel where you had playwrights like Vijay Tendulkar. Then you had the psychological theatre with Satish Alekar, Mahesh Elkunchwar. But the commercial theatre was not there in these languages and it was looked down upon,” said Hasan.  Also Read – Over 2 hours screen time daily will make your kids impulsiveKnown for his lavish productions, Hasan says the idea is to tell the audience an engaging story and making it “an experience”.“What I did with Ek Mulaqaat was, I brought a very niche subject which you would usually do sans any frills and I sort of put it in your face with the casting (Shekhar Suman and Deepti Naval), lighting and original music. Now if you call that commercial theatre, so be it,” he says.“The ambition is not that we are making a commercial theatre, the idea is to tell a very engaging story. Earlier, it was done only with dialogues but now we are making it an experience. Now if you are depicting a night, please make it look like a night. We use lights to do that. These lights are not just for effect, they convey a certain meaning.”  Hasan says his plays can be branded commercial as he is trying to bring more people by using inventive ways. It is commercial because there is money which goes into its making and it needs to be recovered, he says, justifying the ticket prices. “That (ticket prices) is the only way we recover it. So if you have a Shekhar Suman or Deepti Naval or Satish Kaushik and a director like Saif Haider Hasan, you will get great production quality and there will be expenses. So, you need to pay for it.” Hasan, who has roped in famous names like Suman, Naval, Sonali Kulkarni and Arif Zakaria for his stage productions, says in near future Bollywood stars would be turning to stage. “It is a very interesting phase and I predict that in next 10-15 years a lot more of the bigger actors from cinema will be moving to the stage. My biggest aim was to direct (Amitabh) Bachchan saab but I don’t think it would happen,” he says. Asked if the Broadway trend is making its way in India with known faces like Naseeruddin Shah, Puneet Issar, Anupam Kher, Saurabh Shukla, Shabana Azmi already doing plays, he says, “Very soon… bigger stars and actors are going to come on stage soon.” “A lot of them are doing theatre for the first time. It has again started getting press. Commercial theatre, if not equal to TV, still pays a decent figure and a lot of people who have been out of work are now getting work. It’s a fair and legitimate thing. It is not like they are opening up a shop.” “On the flip side of it, in Bombay the entertainment page has doubled up. Everybody is doing theatre and there are all kinds of theatre good, bad and ugly. The good thing is a lot of people are now doing theatre,” he says.Hasan says there should be more auditoriums as theatre people are eating into each other’s business.last_img read more

Pastry trends for the diet conscious

first_imgEver thought about what is awaiting you this season in the pastry department? Here are some of the upcoming pastry trends, for the sweet-tooth that is going to hit the market this year, by Chef Vivek Chauhan – Pastry Chef, The Imperial New Delhi. Use of Seasonal ingredientsFresh ingredients accentuate flavor and enhance the taste of patisseries. Seasonal ingredients with fresh herbs, fruits, fruit purees and cress instantly give a garden fresh punch and create an indulgent affair. This trend will see an up rise this year with home bakers to expert chefs, using garden produce in their baking process.  Also Read – Add new books to your shelfIntroduction of Modern Gastronomic ingredients and techniques:Use of innovative techniques and exotic ingredients had already knocked baking doors and is surely an upcoming trend in the years to come. It not only offers a variety to pastry lovers but also enhances their sensory experience. So whether it is freeze dried fruit or organic vegetables, what comes on plate is unique and exquisite. For instance freeze dried raspberry offers a crunchy taste and sharpness while powdered cheese helps in boosting the flavours, for creating a delectable dessert. Apart from this a texturiser and an airing agent gives volume to one’s bakery innovation.  Also Read – Over 2 hours screen time daily will make your kids impulsiveIntroduction of Dietary Allergens:Labelling of 14 potential allergens as per the European Law started in 2014 itself. This will be an asset in Indian hospitality industry too with increasing number of foreign travelers and guests having different set of allergies. It is important to adequately label each product offering to make the guest/customer aware of the ingredients used in making it. For instance: Lime Cheesecake with Raspberry Compote and Chocolate Soil  (G) –Gluten,(E)-Egg ,(M) –Milk Health in pastries Use of high fibre content, sugar alternatives like honey, palm sugar, jaggery amongst others are much loved by people who opt for healthy variants while pleasing their sweet tooth. Boxed baking ingredients delivered to one’s doorsteps for healthy cooking, like in Europe, will also be soon seen in India. 2017 will also see come back of traditional recipes crafted in new versions.Innovations in Restaurant DessertsInnovation is the key when we talk of baking. From flavours to presentations everything makes for an experience especially when the awareness is high amongst people looking for luxury dining. Fresh home-made breads, artisan breads, palates bursting with essence, have raised the bar of expectations and will surely evolve further in the coming years. Even the ways Petit Fours are presented with a meal now make for a lasting impression.Regeneration ovens for buffetsBuffets are becoming more formal and dining more eloquent now, making one feel truly special and taken care. Use of regeneration ovens has added on to the experience of relishing hot deserts in big volumes. The ovens retain the food serving temperature till plated, satiating you to the last bite.Exotic PatisseriesFrench pastries and cakes will see an upsurge in produce and demand accompanied by generous use of herbs and select ingredients. One can look for some awesome unheard innovations in this year.last_img read more

Shuttle cab driver arrested for trying to kidnap two women

first_imgKolkata: A shuttle car driver was arrested on Saturday night in Haridevpur for allegedly kidnapping two women with foul intention. Both the women had screamed for help and were later recovered by the police with the help fromsome locals. According to sources, a young woman boarded a shuttle car — an SUV, from Prince Anwar Shah Road and took the shot gun seat. There were several other passengers including another woman seated inside the car. Near Keorapukur, all the passengers except the two women got down from the car. After that the driver identified as Kanai Das drove the car towards Kabardanga. While driving Das, started misbehaving with the woman on the front seat. When she asked Das to behave, he did not bother. The woman then asked Das to stop at Kabardanga crossing as she wanted to get off. Also Read – Rain batters Kolkata, cripples normal lifeBut Das sped up the vehicle and took a turn on Julpia Road. Meanwhile, the woman on the back seat asked the driver to stop the vehicle as well. But that too did not affect Das. On sensing danger, both the women started screaming for help. Some locals heard them and started chasing the car on bikes and auto-rickshaws. Meanwhile, a woman standing on the roadside called up the police control room and informed them about the situation. Immediately, an all concern alert message was circulated with the car’s registration number WB 26R 6979. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedMeanwhile, Das noticed in the rear view mirror of the car that several people were chasing him. Approximately, after driving around one kilometer, Das stopped the car and forcefully tried to get both the women out the car. A nearby police van was looking for the same vehicle. On hearing the women scream for help, police immediately intercepted the car. By that time, locals chasing the car reached the spot at Kalo Pole and narrated the whole incident. Das immediately arrested and the women were rescued. While getting off from the car in a hurry, one of the women sustained leg injury. Das has been booked on charges of sexual harassment (354A IPC) and kidnapping (363 IPC).last_img read more

BSP leader Satish Mishra to attend TMCs Jan 19 rally

first_imgKolkata: The Bahujan Samaj Party has confirmed that its senior leader Satish Chandra Mishra would attend the opposition rally convened by the Trinamool Congress in Kolkata Saturday, TMC sources said. “We have just received confirmation from the BSP that its All India General Secretary Satish Chandra Mishra will attend the opposition rally on January 19,” a senior TMC leader said. With the BSP confirming its attendance, almost all major opposition parties the Congress, the NCP, the National Conference, the SP, the AAP, the DMK, the JD(S), and the TDP would participate in the rally, a TMC leader said. Also Read – 3 injured, flight, train services hit as rains lash Bengal However, the Left parties led by the CPI(M) have decided not to attend the rally. TMC supremo and West Bengal Chief Minister Mamata Banerjee earlier this week said senior Congress leader Mallikarjun Kharge will represent his party. The TMC leadership has claimed in a tweet that Saturday’s “rally of all rallies” will sound the “death knell” of the BJP government at the Centre. “To pave the way for a much-needed change for the better of our great nation.” In a show of strength ahead of the general election, Banerjee is organising the rally likely to see participation of lakhs of her supporters. The rally will be held at the Brigade Parade Ground in central Kolkata.last_img read more

New drug may stop migraines before they start

first_imgIn a good news for people who suffer from chronic migraines, researchers have identified a medication that can prevent the severe headaches before they start. More than 100 drugs and other treatments are available for migraines, but they don’t work for everyone. And many have serious side effects, or can only be used after a migraine starts.An antibody therapy against a key inflammatory molecule involved in migraines reduces the number of headaches that chronic migraine patients experience per month in a phase III trial.”This therapeutic approach offers new hope for people whose migraines cannot be treated with existing medicine,” said Stephen D Silberstein, from the Thomas Jefferson University in the US.The World Health Organisation (WHO) estimates that between 127 and 300 million people around the world experience chronic migraine, defined as 15 or more headaches per month for at least three months.The disease can be debilitating and although a number of interventions exist, many only work for a certain time before they fail to prevent or relieve pain.The drug called Fremanezumab is a biological agent that binds to and blocks the action of a migraine-associated protein called calcitonin gene-related peptide (CGRP).Mounting evidence of its importance in migraines has made CGRP a focal point of research and drug development.The peptide is released at high levels during migraine in response to inflammation, and triggers a cascade effect that stimulates more CGRP release. This results in increasing sensitivity of the brain to pain.By blocking this peptide, doctors hope to break the cycle of increasing inflammation and increased pain sensitivity that contributes to migraine headaches. For the study, researchers enrolled 1,130 patients and divided them in three groups. The first group received quarterly treatments, the second group received one treatment per month and the third group received placebo injections.The trial lasted for 16 weeks, with a 12-week treatment window.The findings showed that treatment with fremanezumab reduced the number of days patients experience headache by an average of 4.3 days with quarterly treatment and 4.6 days with monthly treatment.”We saw some patients with 100 per cent reduction in migraine, others with 75 per cent reduction,” said Silberstein. The level of response varied between patients. The researchers also looked at how well the therapy worked relative to each patient’s headache burden.They calculated the percentage of patients who had more than a 50 per cent reduction in the number of days they experienced either a severe or moderate headache per month.Using this measure, the researchers saw that 37.6 per cent of patients on the monthly regimen and 40.8 per cent on the quarterly regimen had at least a 50 per cent reduction in the number of moderate headaches per month, compared to 18.1 per cent in the placebo group.last_img read more

PM inaugurates National War Memorial

first_imgThe National War Memorial, an aesthetic delight, has been completed on a war footing pace. The dream of having a National level War memorial has come through after 60 years after it was proposed by the armed forces to honor the soldiers, who gave their lives in wars and operations since independence. The PM inaugurated it at a critical juncture and within hours the Indian Air Force carried out surgical strikes against terrorist camps in Pakistan. The huge footfall of the public on the first day itself bears testimony to the patriotic fervour fluttering high among the citizenry. Also Read – Add new books to your shelfThe Technical Head of the National Memorial Project, Lt Col Sushil Choudhary (Retd) has recent memories of war casualties of his own colleagues that goaded him in constructing this memorial. This prompt construction of the National War Memorial has been a rare feat. The state of art IBMS technology instills seamless management. Apps can help visitors to locate soldiers and virtual homage can be paid to them. The memorial is beautiful structure standing amidst rolling gardens in four quadrants with its 665 trees forming a bulwark of Rakshak Chakra. Also Read – Over 2 hours screen time daily will make your kids impulsiveThe Amar Chakra stands collinear with the Amar Jawan Jyoti and the India Gate. All ceremonies happening at the Amar Jawan Jyoti will now be shifted here. The making of giant murals of bronze and sandstone from demurred sketches was achieved by adept sculptors. The huge sandstone mural of the Battle of Basanta in 136 pieces posed synchronization problems. Some of these battle sagas have inspired movie plots. Interestingly, the name of this monument in Hindi and English underwent several changes and even two days before the PM inauguration, the Hindi name upon the entrance gate got changed. In routine, the memorial of this magnitude usually takes at least two and half years to construct, but NCC Ltd without any doubt has done a wonder by creating this majestic monument in less than a year, which is a record in itself.last_img read more

Novel form of stress promotes longevity

first_imgA newly described form of stress triggers in cells a response that leads to a longer life, according to a study that opens up the possibility of new ways to intervene in human ageing and promote longevity. Researchers at Baylor College of Medicine and the Houston Methodist Research Institute in the US found that moderate chromatin stress levels set off a stress response in yeast, the tiny laboratory worm C elegans, the fruit fly and mouse embryonic stem cells. Also Read – Add new books to your shelfIn yeast and C elegans, the researchers found that the response promotes longevity. The findings, published in the journal Science Advances, suggest that chromatin stress response and the longevity it mediates may be conserved in other organisms. “Chromatin stress refers to disruptions in the way DNA is packed within the nucleus of the cell,” said Weiwei Dang, an assistant professor at Baylor. “One of the factors that influences chromatin structure is proteins called histones,” Dang said. Also Read – Over 2 hours screen time daily will make your kids impulsiveIn the nucleus of cells, DNA wraps itself around histone proteins forming a ‘beads-on-a-string’ structure called chromatin. Other proteins bind along chromatin and the structure folds further into more complicated configurations. Everything involving DNA would have to deal with this chromatin structure, Dang said. For example, when a particular gene is expressed, certain enzymes interact with the chromatin structure to negotiate access to the gene and translate it into proteins. When chromatin stress happens, disruption of the chromatin structure can lead to unwanted changes in gene expression, such as expression of genes when they are not supposed to or lack of gene expression when it should occur. Dang and his colleagues worked in the lab with the yeast Saccharomyces cerevisiae to investigate how the dosage of histone genes would affect longevity. They expected that yeast genetically engineered to carry fewer copies of certain histone genes than normal or control yeast would have chromatin changes that would result in the yeast living less than controls. “Unexpectedly, we found that yeast with fewer copies of histone genes lived longer than the controls,” said Ruofan Yu, a research assistant in the Dang lab. Yeast with a moderately low dose of histone genes showed a moderate reduction of histone gene expression and significant chromatin stress. Their response to chromatin disruption was changes in the activation of a number of genes that eventually promoted longevity. In previous work Dang and colleagues had shown that in ageing cells chromatin structure progressively falls apart. Histone alterations, such as a decrease in their protein levels, are a characteristic of the ageing process, but the researchers showed that if they compensated for this age-related decrease in histone levels by overexpressing certain histone genes they extended the lifespan of ageing yeast cells. In the new study, they discovered that moderately reducing the number of copies of histone genes in young yeast also promoted longevity. “We have identified a previously unrecognised and unexpected form of stress that triggers a response that benefits the organism,” Yu said. “The mechanism underlying the chromatin stress response generated by moderate reduction of histone dosage is different from the one triggered by histone over-expression we had previously described, as shown by their different profiles of protein expression responses,” he said. Dang, Yu and their colleagues found that chromatin stress also occurs in other organisms such as the laboratory worm C elegans, the fruit fly and mouse embryonic stem cells, and in yeast and C elegans the chromatin stress response promotes longevity. “Our findings suggest that the chromatin stress response may also be present in other organisms. If present in humans, it would offer new possibilities to intervene in the ageing process,” Dang further said.last_img read more

Bad Phone Connection Led Doctor to Inject Teenage Girl with Parrots Blood

first_imgOn January 26, 1931, a physician at St. Joseph’s Hospital in Joliet, Illinois, injected a 15-year-old girl with parrot’s blood. This story, which appeared in the Sunday edition of the San Bernardino Sun, reported that the patient, Lilian Fisher, was “going to recover because of, or perhaps, in spite the blood of a parrot which was injected into her veins by mistake.” As it turns out, the mishap had less to do with the doctor’s medical knowledge and more to do with a simple, yet bizarre, miscommunication.A TEM micrograph of poliovirus.According to the story, Lilian Fisher was suffering from “Infantile Paralysis,” and admitted to St. Joseph’s Hospital for treatment. The Mayo Clinic defines Infantile Paralysis as the once commonly used name for what modern medicine now calls Polio.Polio is a highly contagious disease which causes severe nerve damage. The nerve damage causes paralysis, and in time becomes so bad the patient is no longer able to breathe and can, as a result, die from the symptoms.Dracunculiasis and Poliomyelitis cases per year. Photo by Anxietycello CC BY-SA 4.0Thanks to modern vaccinations, there has not been a natural case of Polio in the United States since 1979. However, in 1931, the disease was much more common and used to be treated with blood transfusions.So when Lilian Fisher’s doctor, who was unnamed in the article, realized that Lilian required a blood transfusion, he quickly phoned Dr. George Howitt Weaver at Durand Hospital in Chicago for advice. Dr. Weaver’s recommendation was simple: “Use her parent’s blood.” However, this is not what Lilian’s physician heard.The patient’s family physician called a nearby hospital for advice and misheard “parent’s blood” as “parrot’s blood”After hanging up the phone, he searched frantically for a parrot, which he found and put under anesthetic. He then drew five cubic centimeters of blood from its heart and injected it into Lilian Fisher via intermuscular injection.After realizing his mistake, Lilian’s physician blamed the interspecies blood transfusion on a “bad phone connection.” Dr. Weaver had said “parent’s blood,” but Lilian’s physician had heard “parrot’s blood.”Pet Parrot Creates Bizarre Shopping List On Owner’s DeviceBy the time the story was written and published, Lilian and the parrot were reported to be on their way to recovery. Thankfully, neither doctor claimed that her improved condition had anything to do with the parrot’s blood.Both the parrot and Lillian recovered fastInstead, when Dr. Weaver found out about the mishap, he claimed that her recovery was “not likely to have resulted from the injection.” He also claimed that the transfusion should not have any negative long-term effects.Before the 20th Century, very little was known about Polio. According to the Journal of Epidemiology, the disease devastated Europe during the 19th Century, but doctors knew nothing about its cause.An Egyptian stele thought to represent a polio victim, 18th Dynasty (1403–1365 BC). Photo by Fixi CC BY-SA 3.0In the summer of 1894, the first polio epidemic hit the United States, where 132 total cases were reported in the State of Vermont. Twelve years later, two Austrian physicians, Karl Landsteiner and E. Popper, finally discovered poliovirus as the cause. While this was the start of research into a cure, prevention and treatment would not become available until 1971.In 1916, tens of thousands of cases were reported in the United States, with over 9,000 cases in New York City alone. In 1929, Physician Peter Drinker developed the iron lung, which aided Polio victims in respiration. However, the contraption was expensive and often imprisoned polio patients in its coffin-like structure for life.Read another story from us: Depiction of a cockatoo on 13th Century Vatican Manuscript rewrites medieval trade route historyThankfully, today, polio is easily prevented by vaccinations. But it still affects children and adults in Africa and in parts of Asia where vaccinations are not widely available.last_img read more

VIDEO LeBron almost ran over Bill Belichick during last nights game against

first_imgBill Belichick decided to take in last night’s 103-99 Celtics win over the Cavs. He almost got taken out by LeBron James in the process.After James contested a rebound, his momentum carried him into the courtside seats under the basket where The Hoodie was seated. Luckily, James was able to stop himself from plowing over Belichick.It’s not every day you almost see legends collide. Literally.When asked for comment about the incident, Belichick repeatedly mumbled, “We’re onto Cincinnati.” Advertisement Check it out:LeBron James on almost sacking Bill Belichick: ‘I’m not taking no legend out’ #NBA #DefendtheLand #Patriots #NFL— Jimmy Gower (@SoflaJimmyG) March 2, 2017last_img read more