For many years it has been said that emperor penguins are able to withstand the extremely cold and harsh Antarctic environment because they have more feathers per square inch than any other bird, but when the researches with this new project searched the literature, they couldn’t find any studies that had actually shown this to be true, so they decided to conduct a study of their own.The study consisted of first plucking feathers from penguins that had died naturally—they’d been collected by other researchers and stored in freezers—and then by cutting off feathered areas to count the number of shafts that remained. In so doing, they discovered that emperor penguins do not have the densest feather coat—at roughly 9 per square centimeter, they lagged far behind birds like the white-throated dipper. Furthermore, they found that the birds had more types of feathers than have been documented. Underneath the visible contour feathers, they found after-feathers, which are downy-looking feathers that attach to the contour feathers. They also found plumules, which are also downy-looking feathers, but they attach directly to the skin—the penguins had approximately four times as many of them as they did contour feathers, suggesting that they serve an important role in helping keep the bird warm and dry in all kinds of cold and wet conditions. And that wasn’t all, after looking even closer (with a microscope) the researchers found filoplumes, a type of microscopically small feather—they have barbs on them—in birds that fly they are used to alert their host to the need for fixing plumage that has become disheveled.The study shows that common ideas about emperor feathers are not correct, and that much more research will need to be done to find out how the combination of feathers allows penguins to keep water away from the skin when diving in icy water and cold air out when standing in sub-zero conditions. (Phys.org)—A trio of researchers, Cassondra Williams, of the University of California, Julie Hagelin, of the University of Alaska and Gerald Kooyman with the Scripps Institute of Oceanography, has found that contrary to popular notions that emperor penguins have the densest outer feathers, they actually don’t, and that they also have different types of feathers that other researchers have said they don’t. In their paper published in the journal Proceedings of the Royal Society B, the team describes their study of penguin feathers on penguins that had died naturally and what was revealed by their efforts. Researchers find emperor penguins outer feathers colder than surrounding air © 2015 Phys.org Citation: Closer look at emperor penguin feathers dispels popular folklore notions (2015, October 21) retrieved 18 August 2019 from https://phys.org/news/2015-10-closer-emperor-penguin-feathers-dispels.html More information: Hidden keys to survival: the type, density, pattern and functional role of emperor penguin body feathers, Proceedings of the Royal Society B, Published 21 October 2015.DOI: 10.1098/rspb.2015.2033 AbstractAntarctic penguins survive some of the harshest conditions on the planet. Emperor penguins breed on the sea ice where temperatures drop below −40°C and forage in −1.8°C waters. Their ability to maintain 38°C body temperature in these conditions is due in large part to their feathered coat. Penguins have been reported to have the highest contour feather density of any bird, and both filoplumes and plumules (downy feathers) are reported absent in penguins. In studies modelling the heat transfer properties and the potential biomimetic applications of penguin plumage design, the insulative properties of penguin plumage have been attributed to the single afterfeather attached to contour feathers. This attribution of the afterfeather as the sole insulation component has been repeated in subsequent studies. Our results demonstrate the presence of both plumules and filoplumes in the penguin body plumage. The downy plumules are four times denser than afterfeathers and play a key, previously overlooked role in penguin survival. Our study also does not support the report that emperor penguins have the highest contour feather density. Explore further Feather types of emperor penguins: tail feather, or rectrice (1); dorsal, base of the tail (2); dorsal, base of the leg, or leg fringe (3); ventral, base of the leg, or leg fringe (4); dorsal contour (5); ventral contour with afterfeather attached (6); fringe of brood patch (7); distal, dorsal primary—double-layered with a dorsal and ventral primary (8); dorsal primary (9); ventral primary (10); dorsal primary (11); dorsal secondary (12); ventral secondary (13); dorsal covert (14); ventral covert (15); leading edge covert (16); skull (17); auricular patch contour (18); dorsal neck contour (19); ventral neck contour (20); dorsal plumulaceous (plumules) (21); ventral plumulaceous (22). See Rutschke  for further details on specialized feather morphology. Credit: Proceedings of the Royal Society B, Published 21 October 2015.DOI: 10.1098/rspb.2015.2033 Journal information: Proceedings of the Royal Society B 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 “A worldwide quantum network may appear quite similar to the internet—a huge number of devices connected in a way that allows the exchange of information between any of them,” coauthor Michael Epping, a physicist at the University of Waterloo in Canada, told Phys.org. “But the crucial difference is that the laws of quantum theory will be dominant for the description of that information. For example, the state of the fundamental information carrier can be a superposition of the basis states 0 and 1. By now, several advantages in comparison to classical information are known, such as prime number factorization and secret communication. However, the biggest benefit of quantum networks might well be discovered by future research in the rapidly developing field of quantum information theory.”Quantum networks involve sending entangled particles across long distances, which is challenging because particle loss and decoherence tend to scale exponentially with the distance.In their study published in the New Journal of Physics, Epping and coauthors Hermann Kampermann and Dagmar Bruß at the Heinrich Heine University of Düsseldorf in Germany have shown that describing physical quantum networks as abstract mathematical graphs offers a way to optimize the architecture of quantum networks and achieve entanglement across the longest possible distances. “A network is a physical system,” Epping explained. “Examples of a network are the internet and labs at different buildings connected by optical fibers. These networks may be described by mathematical graphs at an abstract level, where the network structure—which consists of nodes that exchange quantum information via links—is represented graphically by vertices connected by edges. An important task for quantum networks is to distribute entangled states amongst the nodes, which are used as a resource for various information protocols afterwards. In our approach, the graph description of the network, which might come to your mind quite naturally, is related to the distributed quantum state.”In the language of graphs, this distributed quantum state becomes a quantum graph state. The main advantage of the graph state description is that it allows researchers to compare different quantum networks that produce the same quantum state, and to see which network is better at distributing entanglement across large distances.Quantum networks differ mainly in how they use quantum repeaters—devices that offer a way to distribute entanglement across large distances by subdividing the long-distance transmission channels into shorter channels. Here, the researchers produced an entangled graph state for a quantum network by initially defining vertices with both nodes and quantum repeaters. Then they described how measurements at the repeater stations modify this graph state. Due to these modifications, the vertices associated with quantum repeaters are removed so that only the network nodes serve as vertices in the final quantum state, while the connecting quantum repeater lines become edges.In the final graph state, the weights of the edges correspond to the number of quantum repeaters and how far apart they are. Consequently, by changing the weights of the edges, the new approach can optimize a given performance metric, such as security or speed. In other words, the method can determine the best way to use quantum repeaters to achieve long-distance entanglement for large-scale quantum networks.In the future, the researchers plan to investigate the demands for practical implementation. They also want to extend these results to a newer research field called “quantum network coding” by generalizing the quantum repeater concept to quantum routers, which can make quantum networks more secure against macroscopic errors. Citation: Worldwide quantum web may be possible with help from graphs (2016, June 8) retrieved 18 August 2019 from https://phys.org/news/2016-06-worldwide-quantum-web-graphs.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. Journal information: New Journal of Physics © 2016 Phys.org Physicists find extreme violation of local realism in quantum hypergraph states More information: Michael Epping, Hermann Kampermann and Dagmar Bruß. “Large-scale quantum networks based on graphs.” New Journal of Physics. DOI: 10.1088/1367-2630/18/5/053036 (Phys.org)—One of the most ambitious endeavors in quantum physics right now is to build a large-scale quantum network that could one day span the entire globe. In a new study, physicists have shown that describing quantum networks in a new way—as mathematical graphs—can help increase the distance that quantum information can be transmitted. Compared to classical networks, quantum networks have potential advantages such as better security and being faster under certain circumstances. Physicists have shown that, by describing a quantum network as a mathematical graph, they can determine the best way to use quantum repeaters to achieve long-distance entanglement. Credit: Epping et al. ©2016 IOP Publishing
A team of researchers at IBM has developed a new way to measure the magnetic field of individual atoms that offers 1000 times the energy resolution of conventional techniques. In their paper published in the journal Nature Nanotechnology, the team describes their approach, how well it works and their hope that they will be able to modify it in such a way as to allow others with less specialized hardware to use it. Explore further Journal information: Nature Nanotechnology Scientists are eager to better measure the magnetic fields of individual atoms because they believe it will lead to a better understanding of material and biological interactions—most particularly those involving weak magnetic interactions. Current methods rely on using defects in diamonds, though the team at IBM notes that prior work at their lab shows that it is possible to measure weak interactions in another way, an approach described as challenging. In this new effort, the team has come up with a way to get the job done that is relatively simple, though, they note, it requires special hardware.In the new approach, an atom called a sensor is placed near a target atom inside of a scanning tunneling microscope—a magnetic field is then applied to the microscope followed by a jolt of electricity to the tunnel junction. From there on, the frequency of the atom is monitored—when it matches the spin of the precess (the axis of rotation around a magnetic field that reflects its degree of magnetism), it reveals the measure of the magnetic field. The change in orientation is measured by moving the sensor atom to the microscope’s sensor tip.The researchers found their approach to be far more accurate and easier to read than other methods, pointing out that the signal they got from the technique was both stronger and more robust. They note also that few other labs likely have the combination of equipment (such as the high frequency cabling added to the microscope) required to replicate their technique, so they plan to continue the work in hopes of achieving the same results under more relaxed conditions. © 2017 Phys.org This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Credit: CC0 Public Domain Citation: New microscope technique offers a better way to measure magnetic field of individual atoms (2017, March 7) retrieved 18 August 2019 from https://phys.org/news/2017-03-microscope-technique-magnetic-field-individual.html Ultrasensitive magnetometer proposed based on compass needle More information: Taeyoung Choi et al. Atomic-scale sensing of the magnetic dipolar field from single atoms, Nature Nanotechnology (2017). DOI: 10.1038/nnano.2017.18
India features very high on Belarus’ agenda. The country considers its ever expanding trade and economic cooperation with India as an important contribution to ensure long-standing traditionally friendly and constructive comprehensive ties.India is one of Belarus’ most important partners in Asia. Both the countries have considerably increased the volume of their bilateral trade. Belarus had previously contributed significantly both to the trade and economic component of the Soviet-Indian relations, supplying Belarus tractors, large capacity dump-trucks and other high-tech machinery to India. Also Read – ‘Playing Jojo was emotionally exhausting’Today, the volume of bilateral trade in 2012 increased nearly 2.7 times compared to 2007 and totals $494.4 million. Export of Belarusian products to the Indian market increased over 2.6 times. Among Belarusian goods exported to India are potash fertilizers, large capacity mining vehicles, synthetic cord, acrylic fibers, tyres, bearings, transmitting and receiving equipment, leather, electronic integrated microcircuits and other products.The major Belarusian product supplied to the Indian market are potash fertilizers which are very important for increasing productivity of Indian agriculture and ensuring food security. There is also a dynamic increase of Indian import to Belarus. In 2012, the total volume of Indian goods delivered to the Belarusian market amounted over $ 230 million. India is the biggest supplier of medicine and pharmaceutical substances to Belarus. Among other imported goods are raw tobacco, tea, sea products, spices, nuts, vegetable oils, chemical products, cotton yarn, transformers. Also Read – Leslie doing new comedy special with NetflixSince 1998, the Intergovernmental Belarus-India Commission for Cooperation in the Fields of Economy, Trade, Industry, Science, Technology and Culture has been functioning. The Commission plays a decisive role in working out the consolidated approach of both the parties to cooperation in the above mentioned fields.Another effective tool to expand bilateral mutually beneficial business ties is the Business Council “Belarus-India” which functions under the aegis of the Belarusian Chamber of Commerce and Industry and the Federation of Indian Chambers of Commerce and Industry. Eight sessions of the Council have been organized so far. The visit of the Prime Minister of the Republic of Belarus to India on November 13- 14, 2012 gave a new stimulus to the development of bilateral relations, including in trade, economic, investment and industrial fields. In November 2012, over 60 enterprises, organizations and institutions of Belarus took part in the National Exposition of the Republic of Belarus at the 32nd Indian International Trade Fair in New Delhi. It provided a good opportunity to establish new business contacts between Belarusian and Indian companies.However, there is still a lot of work to do in the sphere of development of trade, economic and industrial cooperation and increasing of turn-over between our two countries. A wide unexplored potential exists in the sphere of technical and industrial cooperation and creation of Belarus-India joint ventures for production of agricultural machinery, engines, cargo vehicles, including high capacity mining trucks.Both the countries have vast perspectives of cooperation in pharmaceutical sphere. Belarus is very much interested not only in buying Indian medicine and pharmaceutical products but also to attract Indian upgraded technology in this field for the expansion of production of pharmaceutical goods and to contribute to the strengthening of the national health security. Belarus is an attractive and safe destination for foreign investments. The country has adopted a well-elaborated investment legislation aimed to encourage investment activities and protect the investors’ rights in its territory. Six free economic zones (FEZs) function in Belarus providing preferential terms of activities to their residents.Among the advantages of doing business in Belarus are favourable economic and geographical location along the eastern boundary of the European Union provides Belarus with an opportunity to serve as a strategic platform for foreign investors to start their business in the promising CIS markets. With the entry into force of the Customs Union of Belarus, Kazakhstan and Russia and the formation of the Unified Economic Space, foreign investors enjoy a smooth access to a huge common market of the three states; political, social, and economic stability, low crime and corruption rate, absence of conflicts; highly skilled manpower makes the country’s labour market particularly attractive. Highly developed industrial and scientific potential has made the Belarusian economy an export-oriented one.
Kolkata: In view of decreasing PLF of the thermal generating stations, the Central Electricity Regulatory Commission (CERC) is relooking the current two-part tariff structure and seeking feed back from stakeholders to replace it with a three-part tariff structure. This in turn could encourage signing of long term PPAs by the state owned power distribution companies as it may decrease some of the stress in the power sector for units unable to complete the project or remain idle due to lack of long term power demand agreements, an utility company official told PTI. Also Read – Heavy rain hits traffic, flightsDue to low demand, coal based power plants are running at a PLF of around 60 per cent. PLF in 2017-18 was 59.68 down from 77.5 per cent in 2009-10, while the government forecasts the same to go lower to 56.50 by FY22′.Consequently, the states have not been coming forward for long term power purchase to avoid fixed cost liability and they have been resorting to short term power purchase to meet their demand, the CERC said in its latest tariff consultation paper. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedThe two-part tariff system structure is suitable when the demand for power ensures utilization of capacity or around the target availability, CERC has said in its new 2019-2024 tariff consultation paper.Two-part tariff operates well in power deficit scenario.The CERC seeks feedback on three parts tariff-fixed charge (for recovery of fixed cost consisting of depreciation for repayment, interest on loan and guaranteed return to the extent of risk free return and part of operation and maintenance expenses), variable charge (incremental return above guaranteed return and balance operation and maintenance expenses) and energy charges (fuel cost, transportation cost and taxes, duties of fuel). The recovery of fixed component could be linked to target availability, whereas variable component could be linked to the difference between availability and dispatch. Fuel charges could be linked with dispatch, it said.CERC consultation paper on ‘2019-2024’ tariff will remain open for comments and suggestions till July 15.The CERC has also mooted consultation on increasing extension of useful life for very old thermal power plants which is now restricted at 25 years, giving a new lease of life to several power units.”It is to be noted that performance of a unit does not necessarily deteriorate much with age, if proper O&M practises are followed,” the regulator said.Extension of useful life is one of the options among others like phasing-out, renovation and replacement with super critical plants.According to central electricity authority, the capacity of coal based thermal power plants more than 25 years old is about 37,453 MW, out of which around 35,506 MW capacity pertains to state/central sector, as on March 2016.
DLF Emporio, India’s first and finest luxury destination, is presenting the 8th edition of Luxury Shopping Festival which began on October 13 and will be on till November 8. This Festival will exhibit the impending festive season in the most luxurious way and will offer patrons a chance to win exclusive designer gifts, holiday packages and much more.Shoppers who shop for a minimum of Rs 20,000 during the festival will be entitled to participate in daily, weekly and mega lucky draws during the festival. Also Read – ‘Playing Jojo was emotionally exhausting’The mega draw winner stands a chance to win an exquisite bejeweled necklace from Rose. The highest spender of the each week will also win fabulous holiday packages to Dubai/Cape-town/NYC/Maldives by ‘One&Only Resorts’. The excitement continues as patrons win designer gifts from in-house brands daily throughout the festival.The Luxury Shopping Festival 2015 includes an exclusive pop-up store wherein the winners of Design Awards 2014-15 will get to showcase their collection for two weeks at DLF Emporio. Dinaz Madhukar, senior vice president, DLF Emporio adds, “We are happy to host the 8th edition of Luxury Shopping Festival at DLF Emporio. We look forward to welcoming all our guests to celebrate the pre-festive season with us and win while they shop at DLF Emporio.”DLF Emporio’s Luxury Shopping Festival is the place to be where so much is on offer. So go there and grab the opportunity to explore.
Evolving from the ancient Celtic holiday of Samhain, modern Halloween has become less about literal ghosts and ghouls and more about costumes and candy. To celebrate the night of the dead, Delhiites dress up at their spookiest best.Skeletons, tombstones, spider webs and glowing pumpkins are amongst the popular decor items, but the list can go on and on. The day has become yet another excuse for youngsters to dress up at their horrific best and have some fun. Party stores, costume shops and make-up artists are gearing up to cash in on the trend to transform people into creepy characters ahead of the festival. Also Read – ‘Playing Jojo was emotionally exhausting’Know to be an American holiday, Halloween seems to be gaining fast popularity in India. “People have started getting quite serious about their looks, as many popular pubs and nightclubs in the city are throwing parties that hold ‘ghostly’ competitions and give away fancy prizes to the best dressed,” said – a makeover expert. Recognising an increasing demand for Halloween parties director of a local bar said, “We have decorated our pub with scary chandeliers and skeletons, making it look like a dark dungeon. Our in-house DJ will play scary music all night to make it a complete Halloween experience. We are also calling three artists to paint faces.” Also Read – Leslie doing new comedy special with NetflixChild-friendly Halloween setups also seem to be in demand as they are being organised to cater the needs of both parents and toddlers. “The idea is to involve the whole family in this festival, which is why we are going for a lighter Halloween theme party this year. We will have people dressed up in cartoon characters such as superman, spiderman etc. We are also organising a best-dressed competition and children will also be allowed to take instant photographs with their favourite cartoon character,” said an event organiser. In spite of being the most ‘in’ thing recently, Halloween somehow seems to be stuffed within the boundaries of a clubhouse or a private party. The famous trick or treat tradition is not that successful in a country where parents spend a lot of energy warning children not to talk to strangers. This puts us in a position to question the custom we have adopted mindlessly. Because let’s face it, no Indian parent would want their children to dress up in a blood sucking vampire costume, they would rather dress them up as engineers or doctors! While Dussehra was celebrated to fight good over evil then why to bring evil back in the form of Halloween? Think about it!
Kolkata: In a significant stride to encourage residents of New Town to harness their rooftop or balcony spaces to grow vegetables, the New Town Kolkata Development Authority (NKDA) is all set to create a market space from where they would be able to choose their desired service packages for the same.”Many people have shown keen interest to start rooftop urban farming but could not begin because of lack of expertise. There will be no hassle or botheration for the house-owners as the market spaces will give them the liberty to choose the empanelled agency for maintenance and other requisites of roof top farming. The agency, in lieu of the service, will charge the resident that will be fixed by us,” a senior NKDA official said. Also Read – Rain batters Kolkata, cripples normal lifeThe NKDA has already invited expression of interest (EOI) from eligible, reputed and licensed NGO/agency/company/consortium for empanelment under the NKDA for developing rooftop farming infrastructure for residents of New Town through its website. The date of opening of empanelment documents have been fixed on January 21. According to the official, this move will be beneficial to the residents with individual plots or members of a cooperative or housing complex as rooftop farming will provide decorative benefits, quality food, architectural enhancement etc. Pointing out the advantages of rooftop urban farming, the official added that it will reduce the carbon emissions for transporting vegetables from rural areas like Bhangar to the homes in Kolkata. It will also ensure availability of pesticide free, organic, healthy and fresh vegetables. The roof would be cooler in summers as well,” he added. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedNKDA chairman Debashis Sen held a meeting on Friday with officers and progressive technical farmer entrepreneurs where a number of models were discussed on how to encourage city dwellers to harness the rooftops or balcony spaces to grow vegetables. The role of NKDA would be to spread the message and act as a regulator of sorts. “At the same time, we will make citizens aware of the empanelled agencies during our outreach activities on vector-borne diseases, segregation of solid waste etc,” the official maintained. Agri Horticultural Society will be the technical partner of NKDA for providing the knowhow. It may be mentioned that at Swapno Bhor, the state’s first senior citizens’ park, organic farming of vegetables has recently been started in collaboration with an NGO and senior citizens, who are members of the same, are overseeing it.
Planning to go for a family vacation? From managing the needs of all of your family members, to ensuring that the hotel fits in your budget – there are lots of things to consider before booking the place, say experts. Here are a few things that one needs to keep in mind while booking a hotel for a family vacation:Location of the hotel: One should select the hotel by checking out its location over the map or the areas nearby. It should be located at a safe area or within walking distance to the major attractions you plan to visit. Also Read – Add new books to your shelfFamily-friendly room features and amenities: The hotel should be well equipped with all the basic and some add-on amenities like larger rooms, separate bathroom with pocket door, laundry service, room wifi, parking and take away service.Select hotel with multiple dining options: Always look out for hotels which offer various in house restaurants like fine-dine and coffee shop which makes your trip more interesting and allows you to relish more food options. Also Read – Over 2 hours screen time daily will make your kids impulsiveSize of the rooms: If you are looking to accommodate the entire family (upto four people) in one room, please make sure the size of the room is spacious enough for the entire family, do the hotel have an extra bed facility in case you need one.Special facilities for children: Do check in advance if the hotel provides separate pools for children with life guards around during the swimming hours.Research about the hotel: Last but not the least, do read the reviews on the hotel before making the final payment.
Kolkata: A report submitted to the Election Commission by the District Magistrate of North 24-Parganas in connection with the detention of Rujira Banerjee, wife of Trinamool Congress MP Abhishek Banerjee at Kolkata Airport, says that there is no mention of any gold in the seizure list by the Customs.The report has validated Abhishek Banerjee’s claim who had categorically stated during a press conference on Sunday that his wife had not been carrying any gold when she was intercepted by Customs officials inside Kolkata Airport on the night of March 15. He had also challenged the Customs officials to produce CCTV footages, if they had any, to prove that his wife was carrying gold. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataFollowing the incident, the office of the Chief Electoral Officer (CEO) in the state sought a report on the entire incident from the District Magistrate of North 24-Parganas Antara Acharya, who is also the District Election Officer (DEO). After being instructed by the commission, the DEO on Tuesday submitted the report to the office of the Chief Electoral Officer (CEO) on Tuesday, which apparently validates Banerjee’s claim. The incident had triggered a political slugfest in the state ahead of the Lok Sabha elections. Banerjee had expressed strong objection after many news portals and some national news channels reported the incident without verifying the authenticity of the allegations. Also Read – Lightning kills 8, injures 16 in stateThe commission had also received several complaints in this regard from various political parties. Banerjee’s lawyer had filed a complaint with the CEO’s office against BJP’s MP from Asansol Babul Supriyo, for making false statements regarding the issue, on his Twitter handle. The fake news related to the incident was also mentioned in the complaint by his lawyer. A senior official of the CEO’s office has confirmed that the report has been received. After going through the report, the CEO’s office will finally send it to the Election Commission of India (ECI) in Delhi. The CEO’s office will act according to the instructions of the ECI in this regard. It has been learnt that the DEO has submitted the report on the basis of inputs provided by Bidhannagar Police. The CEO’s office has no jurisdiction to intervene in the Customs related matter and hence it is up to the ECI to take up the matter with the Central agencies if it feels so. “We have received a factual report from the DEO of North 24-Parganas on the matter. We are looking into it,” a senior election official from the CEO’s office said.