China Building 30Mile Bridge Connecting Hong Kong to Guangdong Province

first_img © 2009 PhysOrg.com This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. The deep-water port city Zhuhai (Guangdong Province) has become a boom town for tourism, high-tech manufacturing and Macao is noted for its entertainment and gambling endeavors. The completion date of the bridge is set for 2016. The estimated cost of the project will exceed $10 billion, shared among the central government, Hong Kong and Guangdong provinces. According to the most powerful economic agency in China’s governmental structure, the National Development and Reform Commission headed by Zhang Xioqiang, “no efforts will be spared to maximize the economic benefit of the project.” Very low toll fees will be charged to encourage the general population to use the bridge. The Y shaped bridge will employ cutting edge engineering design features which include the ability to withstand up to a 8.0 magnitude earthquake, typhoons and the ability to shrug off the impact of a 300,000 ton vessel. Most remarkably is the planned longevity of the bridge which is designed to last an estimated 120-years. The main part of the sea bridge will feature an 18-mile oversea pass with a 3-3/4 mile harbor tunnel under the South China Sea. Two artificial islands will be created in the Macao and Zhuhai ports that will connect the tunnel and the bridge on the other side. Keeping in mind the aesthetics of the project, millions of dollars are allocated for landscaping, tourist roadside turnouts and preservation of the white dolphin, a natural inhabitant of the South China Sea. South China Sea Bridge. Via China Daily Explore furthercenter_img Citation: China Building 30-Mile Bridge Connecting Hong Kong to Guangdong Province (2009, December 18) retrieved 18 August 2019 from https://phys.org/news/2009-12-china-mile-bridge-hong-kong.html China Daily reports the commencement of the 30-mile Hong Kong-Zhuhai-Macao Bridge, the longest sea bridge under construction world-wide. The six-lane expressway will cut travel time from three-hours to around 30-minutes to and from the densely populated and lucrative centers of manufacturing, finance and tourism located in and around Guangdong Province to Hong Kong. Is it a bird, is it a plane, no it’s a bridge!last_img read more

European team suggests new way to measure scientific relevance by city

first_img More information: — Which cities produce excellent papers worldwide more than can be expected? A new mapping approach–using Google Maps–based on statistical significance testing, Lutz Bornmann, Loet Leydesdorff, arXiv:1103.3216v2 [cs.DL] arxiv.org/abs/1103.3216– www.leydesdorff.net/topcity/ © 2010 PhysOrg.com (PhysOrg.com) — In a move that must have been at least partly aimed at provoking prideful nationalism, Lutz Bornmann of the Max Planck Society in Munich and Loet Leydesdorff from the University of Amsterdam have put together a joint project where they were able to produce what they believe is a graphical representation of the relative importance of the science being done in major cities around the world and have published it on arXiv.org. How to Spot an Influential Paper Based on its Citations Citation: European team suggests new way to measure scientific relevance by city (2011, March 24) retrieved 18 August 2019 from https://phys.org/news/2011-03-european-team-scientific-relevance-city.htmlcenter_img They take the basic precept that ten percent of any scientific papers produced in any city, should account for ten percent of citations regarding those papers by others in the field and then mash it onto Google Earth maps with circles representing the relative importance of the science being done there; the bigger the circle, the more work being published; colors are used to denote performance values; red for underachievers, green for over (orange if things come out even, such as is the case with Oxford, England).The results of their efforts can be seen online and are divided by physics, chemistry and psychology. Because it is a Google Maps/Earth application, users can zoom in and out and when they hover over a circle, the name of the city will be displayed. Also, clicking on a circle shows the statistics that were used to arrive at that circle’s size and color.The two authors relied on data obtained from Scopus (circa 2008) for paper publication data, and used citation data up to the beginning of 2011; they focused exclusively on just three of the sciences; physics, chemistry and psychology. Not surprisingly, their work has received some criticism due to metrics that are not so easily quantified, such as whether the language a paper is published in has any bearing on how often it’s being cited by others who prefer to cite articles who write in their native tongue. Also, the authors themselves point out in their presentation paper that their methodology doesn’t allow for actual institutions of learning to be displayed or the density of science paper writers in a city; such as where one city could for example, have a few prolific writers that get mentioned often, while other cities might have many thousands that are seldom individually mentioned.In any case, regardless of how the project is perceived, it’s clear that another step has been taken in the ever ongoing process of measuring the quality of science that is being produced; and that can’t be a bad thing. Explore further This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

Sabpab Trojan seeks out Mac OS X

first_img Citation: ‘Sabpab’ Trojan seeks out Mac OS X (2012, April 17) retrieved 18 August 2019 from https://phys.org/news/2012-04-sabpab-trojan-mac-os.html Hackers hitting Macs with virus: industry experts (Phys.org) — Three compelling reasons that Mac loyalists say justify their love for Macs have been that Macs are 1) the prettiest computers around (2) ideal for any new-age brain that prefers visually rich knowledge work and (3) their systems are far safer than Windows-based PCs, which have been sneered at as malware magnets. This year, life has got Mac-Liter as now they only have to brandish two good reasons. Researchers at major security companies such as Kaspersky Lab and Sophos say that the Mac has yet another Trojan attacker, following Flashback, that can steal information from a system once infected. © 2012 Phys.Org The Sabpab Trojan represents a second round of malware targeted at users of Mac machines. The earlier Flashback, according to some reports, may have succeeded in infecting as many as 600,000 Mac systems. Flashback was designed to get installed on as many machines as possible so that its operators could profit from scams such as click fraud. Apple resolved the mess by issuing a patch while other companies offered up their own clean-up tools for detection and removal. Observers expressed concerns over how Apple was late in presenting its own tool to remove the Flashback malware, while, outside Apple, other firms had issued their free offerings.With this latest Trojan, the exploiters are able to grab screenshots from infected Macs, upload and download files, and execute commands remotely. According to reports, the malware takes advantage of the same security flaw in Java that Flashback exploited. Two unsettling features of the new malware are that this is a back-door Trojan that does not require any user interaction to infect and, according to Costin Rau, a security expert with Kaspersky, the Trojan is an advance persistent threat (APT) attack in an active stage.The definition of APT varies from one security group to another, but it is not trivial. The U.S. National Institute of Standards and Technology (NIST) defines APT as “an adversary that possesses sophisticated levels of expertise and significant resources which allow it to create opportunities to achieve its objectives” using multiple attack vectors. Mandiant, an information security company, calls the APT a sophisticated and organized cyber attack to access and steal information from compromised computers. ”The attacks used by the APT intruders are not very different from any other intruder,” says the company; the difference is in the intruder’s perseverance and resources. “They have malicious code (malware) that circumvents common safeguards such as anti-virus and they tend to generate more activity than wanton ‘drive by hacks’ on the Internet.” The APT threat is using IP addresses that have been known to wage similar attacks on Windows users, according to Kaspersky.Sophos sources, meanwhile, say that the “Sabpab” is not believed to be as widespread as Flashback, but it is yet another wakeup call for Mac users that security is no longer a non-issue. Security on the Mac has become a key issue. 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 furtherlast_img read more

Astronomers detect glitch in a millisecond pulsar

first_imgTiming residuals for PSR J0613−0200 (purple stars: EPOS 1390 MHz green squares: AFB 1400 MHz blue triangles: AFB 600 MHz red circles: AFB 400 MHz black crosses: DR1 including earlier EBPP 1410 MHz). Credit: arXiv:1606.04098 [astro-ph.HE] Explore further More information: A glitch in the millisecond pulsar J0613-0200, arXiv:1606.04098 [astro-ph.HE] arxiv.org/abs/1606.04098AbstractWe present evidence for a small glitch in the spin evolution of the millisecond pulsar J0613−0200, using the EPTA Data Release 1.0, combined with Jodrell Bank analogue filterbank TOAs recorded with the Lovell telescope and Effelsberg Pulsar Observing System TOAs. A spin frequency step of 0.82(3) nHz and frequency derivative step of −1.6(39)×10−19Hz s−1 are measured at the epoch of MJD 50888(30). After PSR B1821−24A, this is only the second glitch ever observed in a millisecond pulsar, with a fractional size in frequency of Δν/ν=2.5(1)×10−12, which is several times smaller than the previous smallest glitch. PSR J0613−0200 is used in gravitational wave searches with pulsar timing arrays, and is to date only the second such pulsar to have experienced a glitch in a combined 886 pulsar-years of observations. We find that accurately modelling the glitch does not impact the timing precision for pulsar timing array applications. We estimate that for the current set of millisecond pulsars included in the International Pulsar Timing Array, there is a probability of ∼50% that another glitch will be observed in a timing array pulsar within 10 years. Citation: Astronomers detect glitch in a millisecond pulsar (2016, June 17) retrieved 18 August 2019 from https://phys.org/news/2016-06-astronomers-glitch-millisecond-pulsar.html The ‘glitching’ of the Vela pulsar (Phys.org)—European astronomers have uncovered evidence of a small glitch in the spin of a millisecond pulsar. According to a research paper published on June 13 on arXiv.org, the pulsar, designated PSR J0613-0200, exhibits sudden changes in spin frequency, known as timing glitches. It is so far the smallest glitch size recorded and the second detection of a glitch in a millisecond pulsar to date. Millisecond pulsars have highly stable rotation, thus they are used as extremely precise clocks in timing experiments, and the most stable are used as probes of space-time in pulsar timing array (PTA) experiments. PSR J0613-0200 in particular, is used in gravitational wave searches with pulsar timing arrays.Recently, a team of European researchers, led by James McKee of the Jodrell Bank Centre for Astrophysics, U.K., detected the glitch in PSR J0613-0200, using data from four different telescopes across Europe. For their study, the astronomers employed the Lovell Telescope at Jodrell Bank in the U.K., the Nançay Radio Telescope in France, the Effelsberg Radio Telescope in Germany, and the Westerbork Synthesis Radio Telescope in the Netherlands.According to the scientists, the small glitch was easy to detect with a data set covering a long baseline. They noted that during a detailed analysis of the available data, the effect of the glitch was easily removed without loss of timing precision and concluded that this anomaly does not affect the timing stability of this and other pulsars studied in PTA experiments.”As the glitch is small and the red noise of the pulsar is not well-defined, it is therefore likely that potential unmodeled glitches outside the timing baseline for other PTA pulsars have no significant effect on timing array sensitivity,” the researchers wrote.The team is convinced that the observed anomaly in PSR J0613-0200 is, indeed, a glitch and rules out other possibilities, such as magnetospherically induced variations in rotation and pulse shape, or a gravitational wave burst with memory, caused by a merger of a supermassive black hole binary.”A magnetospherically induced change in pulse shape related to a change in frequency derivative was considered as an alternative [explanation]… but no significant change of the pulse profile associated with the glitch was observed,” the paper reads.When it comes to the ‘burst with memory’ theory, the researchers concluded that although the change in spin-down rate is consistent with zero, the small glitch is still relatively too large for this scenario to take this possibility into account.McKee and his team predict that for the current set of millisecond pulsars included in the PTA experiment, there is a probability of about 50 percent that another glitch will be observed in a timing array pulsar within 10 years. However, it won’t be an easy task.”For future glitches in PTA pulsars, only the pre-glitch data would be usable until sufficient time had passed for the post-glitch spin parameters to be measured, or for any post-glitch pulse profile variation to be recognized in the case of a magnetospheric variation,” they concluded.The research confirmed that glitches are very rare in millisecond pulsars. The results presented in the paper could also encourage the scientific community to conduct further studies regarding the difference between the number of glitches in millisecond pulsars and the general pulsar population. © 2016 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.last_img read more

Cant pay wont pay

Raising the issue of rising prices, the Sindhi Theatre along  with Sindhi Academy and  Department of Art, Culture, and Languages, Government of Delhi, will present Chukaindasi Kon!. This play is an adaptation of the Italian playwright Dario Fo’s Non Si Paga? Non Si Paga! (Can’t Pay, Won’t Pay).‘Adapting the play is not a problem. It has been translated in Hindi some 20 years back as it has universal significance,’ said the director of the play, Manohar Khushalani. Also Read – ‘Playing Jojo was emotionally exhausting’Known for taking up socially relevant issues, Manohar said: ‘It echoes the current situation that has gripped every nation–that of price rise.’‘The story is about two housewives and the growing price rise in the supermarkets,’ said the director.‘One will go for this play both for its social relevance as well as entertainment value. In this play, if you open your mouth to laugh perhaps you will also open your mind to think on contemporary issues,’ added Manohar. ‘Italian comedy theatre was always about farcical elements, but there is a hint of irony in this play,’ said Meghraj Gurnani, the translator of the play. read more

Russian way or the highway

first_imgAura is Delhi’s only speciality vodka bar offering 55 select and rare vodkas. It effuses classic Russian charm along with a comfortable ambience, perfect for unwinding after hours. The concept of Delhi’s only vodka based bar is reflected in the unique menu offerings. The chilli vodka based cocktail and the raisin infused white rum are only some of the signature cocktails which are sure to appeal to the vodka lovers in the city.  A pioneer in innovative cuisines and F&B offerings, The Claridges New Delhi has also created a unique East European and Russian flavours infused menu to compliment the vodka. Traditional Russian potato dumplings like Pelminis, Ruskies and Perogies, Caviar along with East European and Russian favourites like salmon, cured meats, pickles, etc will be on the menu at Aura.The theme is further enhanced by European lounge music making Aura the first of its kind in the Capital. The rich champagne gold interiors provide the ideal setting for pre dinner drinks and hors d’oeuvres. The hotel is home to award winning restaurants which include Sevilla, Pickwicks, Dhaba by Claridges offering a complete experience for diners.  Timings : 6pm to 1amlast_img read more

Tiger found dead in Bengal forest

first_imgKolkata: The Royal Bengal tiger, spotted on several occasions in forests of West Bengal’s Jhargram, West Midnapore and Bankura districts since early March this year, was on Friday found dead in the state’s Lalgarh forest, an official said. The big cat, which was first spotted on March 2 by a camera trapping exercise in the forest of Lalgarh, formerly a Maoist belt, had escaped several attempts by forests officials to catch it.”The tiger was found dead today (Friday). The reason of the death is not yet confirmed. It could be confirmed after the autopsy,” Principal Chief Conservator of Forests, Wildlife & Chief Wildlife Warden, West Bengal, Ravi Kant Sinha told IANS. Also Read – Heavy rain hits traffic, flightsAccording to local people, several injury marks were found on dead tiger.”It is an unfortunate incident. Forest officials have put best efforts to catch it but they failed. It is obviously a failure. Why could it (tiger) not be captured despite several efforts made by officials?,” State Wildlife Board Member Biswajit Roychowdhury told IANS.According to him, it was an unusual situation for the tiger as the Lalgarh forest is not seen as suitable habitat for tigers given its poor prey base. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedFollowing the reports of killing of cattle, the state Forest Department installed several cameras to confirm the presence of the tiger in the forests and spotted it in one of them installed in the Lalgarh forest, which was not seen as suitable tiger habitat.Since then, several attempts were made to catch it including by laying traps in several locations in the forests and by using drones for searching in forests, but efforts went in vain. Recently, the tiger was caught in a net laid by the officials, but managed to escape.People living in the surrounding areas were terrorised by the presence of the tiger.Forest officials had earlier said that the tiger might have sneaked into the forest from Simlipal reserve in neighbouring Odisha.last_img read more

Renowned homoeopath passes away at 84

first_imgKolkata: Renowned homoeopath Prasanta Banerji passed away on Friday in a city hospital, following a cardiac arrest, sources in his family said. He was 84. The medical practioner was best known for establishing ‘The Banerji Protocol’, which has been described by his website as a method to diagnose and cure specific diseases with homoeopathy medicines.He had also founded the Prasanta Banerji Homeopathic Research Foundation.Born in Jamalpur, Bihar, on October 17, 1933, Banerji had worked as an honorary adviser to the Minister of Health and Family Welfare. Governor Keshari Nath Tripathi expressed his grief over the demise of Banerji, and conveyed his heart-felt condolences to his family and associates.last_img read more

Crash diets rapid weight loss affects back

first_imgCrash diets and rapid weight loss can be harmful to your health, especially the back, says an expert.Meenakshi Sharma, Spine Specialist at Qi Spine Clinic, shares how:* Undernourished body, weak muscles: Cutting back on essential food items such as grains and fruits by following low carbohydrate diets can make you lose out on some of the vital nutrients required by the body. This type of under-nourishment affects the whole body. Muscles are not able to function properly causing them to become easily strained. Also Read – ‘Playing Jojo was emotionally exhausting’How it affects the back: Your lower back and abdominal muscles provide a base of support for your spine, holding your body upright. The muscles of the lower back and abdomen are meant to work together to support the upper body and the spine’s alignment. As these muscles might not get the essential nutrients required, their ability to repair may become poor. At the same time the amount of time taken for these muscles to recover from injury may increase. Also the muscles fatigue early if the nutrition is not as per the requirement. Also Read – Leslie doing new comedy special with NetflixSolution: A well balanced diet including appropriate amount of protein, carbohydrates and fat should be taken. The diet depends on the body type, Body Mass Index and Basal metabolic rate. Percentage of protein, carbohydrates, and fats should be taken according to the body requirement and needs. Along with this, an exercise regime comprising aerobics and weight training should be included.  * Dehydration and spinal discs: Some of the low carbohydrate diets are meant to increase water loss in the body for quick weight reduction. If followed without proper guidance, the body can easily become dehydrated while following these diets. Major content of spinal discs are water. Dehydration could occur in the discs as well.If your body’s water content drops by as little as two percent, you will feel fatigued. If it drops by 10 percent, you will experience significant health problems, such as arthritis and back pain.How it affects the back: Our body is made up of about 70 percent of water. Weight loss that results in a significant amount of water and mineral loss contributes to decreased bone density. Weaker bones can cause spinal misalignments and result in pain. Spinal discs in the body need fluid to maintain height and their ability to absorb shock. Dehydration can lessen the fluids available to spinal discs, which could lead to speedy disc degeneration, bulging or herniation.Solution: Make sure you drink eight to 10 glasses of water daily. Dehydration is no form of weight loss. Also, it doesn’t aid in weight loss. With dehydration, you also lose many important nutrients which are required for the body and the spinal discs. *Over-exercising and back pain: In addition to crash diets, when you are over-exercising, without the correct nutrients, you are accelerating the process of bone loss and muscle loss.How it affects back: Calories are a source of energy and repair for the body. If your body is working your muscles extra hard without minimal fuel, then it becomes susceptible to strains. Not resting enough can also add to the back pain. Not to forget that the high intensity workouts lead to a lot of pressure on the spine in turn jelly i.e. the disc.Solution: Over-exercising and poor nutrition adversely affects your back and may cause back pain. One should also know the right form and extent of exercise required. Wrong forms of exercise loads the spine and could affect the discs and the muscle.last_img read more

20 passengers injured after buses collide

first_imgKolkata: At least 20 people have been injured after a bus collided head on with a truck coming from the opposite direction.The incident took place at Suri in Birbhum on early Monday morning. The incident triggered tension among the locals, some of whom took part in the rescue operation.The injured victims were all taken to the district hospital in Suri. According to the hospital sources, some of the passengers are stated to be in a serious condition. Also Read – Rain batters Kolkata, cripples normal lifePolice said the accident took place near Suri bus depot. A state government-owned bus of South Bengal State Transport Corporation started its journey from the Suri bus terminus at around 4.30 am. The Salt Lake Karunamoyee bound bus was carrying around 35 passengers when the accident occurred.After locals initiated the rescue operation, police reached the spot. They took the injured passengers to the hospital. Frontal portion of both the vehicles have been damaged in the accident. The circumstantial evidence suggests that both the vehicles were running at a high speed when they collided head on.Locals heard a loud thud and rushed to the spot and passengers were shouting for help.Police suspect that the truck driver lost control over the vehicle and this resulted in the accident. The drivers of both the vehicles escaped unhurt.Police are investigating if any of the drivers had fallen asleep at the time of the incident.last_img read more