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2013 in science - Wikipedia, the free encyclopedia - 0 views

  • Morocco in 2011, and report that it is a new type of Mars rock with an unusually high water content.[8][9][10] American researchers state that a gene associated with active personality traits is also linked to
  • Astronomers affiliated with the Kepler space observatory announce the discovery of KOI-172.02, an Earth-like exoplanet candidate which orbits a star similar to the Sun in the habitable zone
  • 13 January – Massachusetts doctors invent a pill-sized medical scanner that can be safely swallowed by patients, allowing the esophagus to be more easily scanned for disease
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  • 17 January – NASA announces that the Kepler space observatory has developed a reaction wheel issue
  • 2 January A study by Caltech astronomers reports that the Milky Way Galaxy contains at least one planet per sta
  • 3 January
  • 8 January
  • 20 January – Scientists prove that quadruple-helix DNA is present in human cells
  • 25 January
  • An international team of scientists develops a functional light-based "tractor beam", which allows individual cells to be selected and moved at will. The invention could have broad applications in medicine and microbiology
  • 30 January – South Korea conducts its first successful orbital launch
  • 6 February
  • Astronomers report that 6% of all dwarf stars – the most common stars in the known universe – may host Earthlike planets
  • Scientists discover live bacteria in the subglacial Antarctic Lake Whillans
  • American scientists finish drilling down to the subglacial Lake Whillans, which is buried around 1 kilometre (0.62 mi) under the Antarctic ice
  • 10 February NASA's Curiosity Mars rover uses its onboard drill to obtain the first deep rock sample ever retrieved from the surface of another plane
  • 15 February A 10-ton meteoroid impacts in Chelyabinsk, Russia, producing a powerful shockwave and injuring over 1,000 people
  • 28 February
  • Astronomers make the first direct observation of a protoplanet forming in a disk of gas and dust around a distant sta
  • A third radiation belt is discovered around the Eart
  • 1 March – Boston Dynamics demonstrates an updated version of its BigDog military robot
  • 3 March – American scientists report that they have cured HIV in an infant by giving the child a course of antiretroviral drugs very early in its life. The previously HIV-positive child has reportedly exhibited no HIV symptoms since its treatment, despite having no further medication for a year
  • researchers replace 75 percent of an injured patient's skull with a precision 3D-printed polymer replacement implant. In future, damaged bones may routinely be replaced with custom-manufactured implants
  • 7 March
  • A study concludes that heart disease was common among ancient mummies
  • 11 March
  • 12 March NASA's Curiosity rover finds evidence that conditions on Mars were once suitable for microbial life after analyzing the first drilled sample of Martian rock, "John Klein" rock at Yellowknife Bay in Gale Crater. The rover detected water, carbon dioxide, oxygen, sulfur dioxide, hydrogen sulfide, chloromethane and dichloromethane. Related tests found results consistent with the presence of smectite clay minerals
  • 14 March CERN scientists confirm, with a very high degree of certainty, that a new particle identified by the Large Hadron Collider in July 2012 is the long-sought Higgs boson
  • 18 March
  • NASA reports evidence from the Curiosity rover on Mars of mineral hydration, likely hydrated calcium sulfate, in several rock samples, including the broken fragments of "Tintina" rock and "Sutton Inlier" rock as well as in the veins and nodules in other rocks like "Knorr" rock and "Wernicke" rock.[177] Analysis using the rover's DAN instrument provided evidence of subsurface water, amounting to as much as 4% water content, down to a depth of 60 cm
  • 27 March – A potential new weight loss method is discovered, after a 20% weight reduction was achieved in mice simply by having their gut microbes altered.
  • NASA scientists report that hints of dark matter may have been detected by the Alpha Magnetic Spectrometer on the International Space Station
  • 3 April
  • 15 April A functional lab-grown kidney is successfully transplanted into a live rat in Massachusetts General Hospital
  • 18 April – NASA announces the discovery of three new Earthlike exoplanets – Kepler-62e, Kepler-62f, and Kepler-69c – in the habitable zones of their respective host stars, Kepler-62 and Kepler-69. The new exoplanets, which are considered prime candidates for possessing liquid water and thus potentially life, were identified using the Kepler spacecraft
  • 21 April The Antares rocket, a commercial launch vehicle developed by Orbital Sciences Corporation, successfully conducts its maiden flight
  • After years of unpowered glide tests, Scaled Composites' SpaceShipTwo hybrid spaceplane successfully conducts its first rocket-powered fligh
  • 29 April
  • 1 May IBM scientists release A Boy and His Atom, the smallest stop-motion animation ever created, made by manipulating individual carbon monoxide molecules with a scanning tunnelling microscope
  • A new study finds that children whose parents suck on their pacifiers have fewer allergies later in life
  • NASA reports that a reaction wheel on the Kepler space observatory may be malfunctioning and may result in the premature termination of the observatory's search for Earth-like
  • 15 May
  • 16 May Water dating back 2.6 billion years, by far the oldest ever found, is discovered in a Canadian mine
  • 27 May Four-hundred-year-old bryophyte specimens left behind by retreating glaciers in Canada are brought back to life in the laboratory
  • 29 May
  • Russian scientists announce the discovery of mammoth blood and well-preserved muscle tissue from an adult female specimen in Siberia
  • A new treatment to "reset" the immune system of multiple sclerosis patients is reported to reduce their reactivity to myelin by 50 to 75 percent
  • 4 June
  • During the Shenzhou 10 mission, Chinese astronauts deliver the country's first public video broadcast from the orbiting Tiangong-1 space laboratory
  • 20 June
  • China's Shenzhou 10 manned spacecraft returns safely to Earth, having conducted China's longest manned space mission to date
  • 26 June
  • 20 June
  • 20 June
  • 6 July
  • Scientists report that a wide variety of microbial life exists in the subglacial Antarctic Lake Vostok, which has been buried in ice for around 15 million years. Samples of the lake's water obtained by drilling were found to contain traces of DNA from over 3,000 tiny organisms
  • 15 July
  • ASA engineers successfully test a rocket engine with a fully 3D-printed injector
  • 19 July
  • NASA scientists publish the results of a new analysis of the atmosphere of Mars, reporting a lack of methane around the landing site of the Curiosity rover
  • Earth is photographed from the outer solar system. NASA's Cassini spacecraft releases images of the Earth and Moon taken from the orbit of Saturn
  • 29 July – Astronomers discover the first exoplanet orbiting a brown dwarf, 6,000 light years from Earth
  • exoplanet
  • 7 January
  • Astronomers
  • report that "at least 17 billion" Earth-sized exoplanets are estimated to reside in the Milky Way Galaxy
  • 20 February
  • NASA reports the discovery of Kepler-37b, the smallest exoplanet yet known, around the size of Earth's Moon
  • 10 June
  • Scientists report that the earlier claims of an Earth-like exoplanet orbiting Alpha Centauri B, a star close to our Solar System, may not be supported by astronomical evidence
  • 25 June – In an unprecedented discovery, astronomers detect three potentially Earthlike exoplanets orbiting a single star in the Gliese 667
  • 11 July For the first time, astronomers determine the true colour of a distant exoplanet. HD 189733 b, a searing-hot gas giant, is said to be a vivid blue colour, most likely due to clouds of silica in its atmosphere
  • NASA announces that the failing Kepler space observatory may never fully recover. New missions are being considered
  • 15 August
  • Phase I clinical trials of SAV001 – the first and only preventative HIV vaccine – have been successfully completed with no adverse effects in all patients. Antibody production was greatly boosted after vaccination
  • 3 September
  • 12 September NASA announces that Voyager I has officially left the Solar System, having travelled since 1977
  • NASA scientists report the Mars Curiosity rover detected "abundant, easily accessible" water (1.5 to 3 weight percent) in soil samples
  • 26 September
  • In addition, the rover found two principal soil types: a fine-grained mafic type and a locally derived, coarse-grained felsic type
  • mafic
  • as associated with hydration of the amorphous phases of the soi
  • perchlorates, the presence of which may make detection of life-related organic molecules difficult, were found at the Curiosity rover landing site
  • earlier at the more polar site of the Phoenix lander) suggesting a "global distribution of these salts
  • Astronomers have created the first cloud map of an exoplanet, Kepler-7b
  • 30 September
  • 8 October The Nobel Prize in Physics has been awarded to François Englert and Peter Higgs "for the theoretical discovery of a mechanism that contributes to our understanding of the origin of mass of subatomic particles, and which recently was confirmed through the discovery of the predicted fundamental particle, by the ATLAS and CMS experiments at CERN's Large Hadron Collider"
  • 16 October Russian authorities raise a large fragment, 654 kg (1,440 lb) total weight, of the Chelyabinsk meteor, a Near-Earth asteroid that entered Earth's atmosphere over Russia on 15 February 2013, from the bottom of Chebarkul lake.
  • Researchers have shown that a fundamental reason for sleep is to clean the brain of toxins. This is achieved by brain cells shrinking to create gaps between neurons, allowing fluid to wash through
  • 17 October
  • 22 October – Astronomers have discovered the 1,000th known exoplanet
  • 4 November - Astronomers report, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of sun-like stars and red dwarf stars within the Milky Way Galaxy
  • 11 billion of these estimated planets may be orbiting sun-like stars
  • 5 November – India launches its first Mars probe, Mangalyaan
  • The IceCube Neutrino Observatory has made the first discovery of very high energy neutrinos on Earth which had originated from beyond our Solar System
  • 21 November
  • 1 December – China launches the Chang'e 3 lunar rover mission, with a planned landing on December 16
  • 3 December – The Hubble Space Telescope has found evidence of water in the atmospheres of five distant exoplanets: HD 209458b, XO-1b, WASP-12b, WASP-17b and WASP-19b
  • 9 December NASA scientists report that the planet Mars had a large freshwater lake (which could have been a hospitable environment for microbial life) based on evidence from the Curiosity rover studying Aeolis Palus near Mount Sharp in Gale Crater
  • 12 December NASA announces, based on studies with the Hubble Space Telescope, that water vapor plumes were detected on Europa, moon of Jupiter
  • 14 December – The unmanned Chinese lunar rover Chang'e 3 lands on the Moon, making China the third country to achieve a soft landing there
  • 18 December
  • nomers have spotted what appears to be the first known "exomoon", located 1,800 light years away
  • 20 December – NASA reports that the Curiosity rover has successfully upgraded, for the third time since landing, its software programs and is now operating with version 11. The new software is expected to provide the rover with better robotic arm and autonomous driving abilities. Due to wheel wear, a need to drive more carefully, over the rough terrain the rover is currently traveling on its way to Mount Sharp, was also reported
Mars Base

Hubble Space Telescope Passes Major Science Milestone | Hubble 10,000th Science Paper |... - 0 views

  • Hubble Space Telescope has crossed a major milestone, accumulating 10,000 science papers based on its observations
  • After 21 years
  • it's actually in the best shape of its life
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  • last space shuttle servicing mission was in May 2009.
  • Papers describing discoveries in nearly every field of astronomy and cosmology have been published based on data gathered by the Hubble Space Telescope.
  • conducted by scientists in more than 35 countries
  • most papers written by researchers in the United States, the United Kingdom, Germany, Italy, France, and Spain
  • Hubble's top five most referenced papers are on
  • The search for distant supernovas used to characterize dark energy
  • The precise measurement of the universe's rate of expansion
  • The apparent link between galaxy mass and central black hole mass
  • Early galaxy formation in the Hubble Deep Field
  • The evolutionary models for low-mass stars and brown dwarfs
  • 10,000th Hubble science paper
  • announces the discovery of the faintest supernova ever associated with a cosmic explosion called a long-duration gamma-ray burst, which spews high-energy radiation into space when a star dies
  • The first science paper based on Hubble data came about six months after the telescope's launch
  • a paper on observations of the center of galaxy NGC 7457, where scientists suspected a huge black hole lurked
Mars Base

Sony Patent Reveals Biometric Controllers - PS3 News at IGN - 0 views

  • Measuring skin moisture, heart rhythm and muscle movement
  • Measuring skin moisture, heart rhythm and muscle movement
  • the following ideas are mentioned in the application
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  • Character changes based on biometric feedback, such as a character sweating when you're nervous.
  • Tensing up your muscles to absorb an attack or power up shields.
  • Weapons that become more accurate or less steady depending on your level of stress.
  • A boost to run faster, jump higher and punch harder while stressed.
  • Rapid decreases in health if your stress increases.
  • Different attacks based on stress levels.
  • Background music that matches your stress level, or becomes more relaxing if you're stressed.
  • Scaling difficulty based on stress level.
  • The last time biometric feedback was introduced to mainstream games was Nintendo's vitality sensor, which was announced at E3 2009 but never released.
Mars Base

'Predictive policing' takes byte out of crime - 0 views

  • Without some of the sci-fi gimmickry, police departments from Santa Cruz, California, to Memphis, Tennessee, and law enforcement agencies from Poland to Britain have adopted these new techniques
  • criminals follow patterns, and with software -- the same kind that retailers like Wal-Mart and Amazon use to determine consumer purchasing trends -- police can determine where the next crime will occur and sometimes prevent it.
  • criminal behavior was not that different from examining other types of behavior like shopping
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  • People are creatures of habit
  • could help in cities where tight budgets were forcing patrol reductions.
  • The key to success in predictive policing is getting as much data as possible to determine patterns. This can be especially useful in property crimes like auto theft and burglary, where patterns can be detected
  • factors in attributes like the time of year, whether it is hot and humid or cold and snowy, if it is a payday when people are carrying a lot of cash
  • not saying a crime will occur at a particular time and place
  • can expect a wave of vehicle thefts based one everything we know
  • officials said serious crimes fell 30 percent and violent crimes declined 15 percent since implementing predictive analytics
  • in 2006
  • CRUSH -- Criminal Reduction Utilizing Statistical History
  • targeted certain "hot spots" to allow police to deploy more efficiently
  • "If the data is indicating a hot spot, we are able to immediately deploy resources there
  • beat officers can use their instincts for similar results
  • software could be far more precise, such as predicting burglaries in a small geographic area between 10 pm and 2 am.
  • the software was able to help police break up a group that was committing armed robberies
  • 84 robberies, but we had no idea it was so organized
  • crunching the numbers, police were able to pinpoint the zone and time of likely holdups
  • police officials from as far away as Hong Kong, Rio de Janeiro and Estonia have come to review the experience in Memphis
  • In Los Angeles, another program
  • was tested in a single precinct, and resulted in a 12 percent drop in crime while the rest of the city saw a 0.2 percent increase
  • led to the creation of a company called PredPol
  • based on a model from mathematician
  • science that underlies the tool will work anywhere. The question is does the agency maintain a database
  • While
  • helping "smarter" policing, it does raise concerns about Big Brother-like snooping
  • technology could be positive but that it could lower the threshold for constitutional protections on "unreasonable" searches.
  • IBM's Cleverly said the technology can in many cases improve privacy
  • How do you cross-examine a computer
  • If the search is based on a computer algorithm
  • how will this affect reasonable suspicion
  •  
    nd in a lot of instances we are able to make quality arrests because we're in the right area at the right time," he told AFP. Although beat officers can use their instincts for similar results, Williams said the software could be far more precise, such as predicting burglaries in a small geographic area between 10 pm and 2 am. In one case, the software was able to help police break up a group that was committing armed robbe
Mars Base

Curiosity Rolls into Intriguing 'Darwin' at 'Waypoint 1′ on Long Trek to Moun... - 1 views

  • NASA’s Curiosity Mars rover has just rolled into an intriguing site called ‘Darwin’ at ‘Waypoint 1’
  • the long journey to Mount Sharp
  • was certain to last nearly a year
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  • science team carefully choose a few stopping points for study along the way to help characterize the local terrain
  • Curiosity has arrived at Waypoint 1
  • has now driven nearly 20% of the way towards the base of the giant layered mountain
  • Altogether, the team selected five ‘Waypoints’ to investigate for a few days each
  • stay just a couple of sols at Waypoint 1 and then we hit the road again
  • Waypoint 1’ is an area of intriguing outcrops that was chosen based on high resolution orbital imagery taken by NASA’s Mars Reconnaissance Orbiter (MRO)
  • Curiosity will only stay a short time at each of the stops, the measurements collected at each ‘Waypoint’ will provide essential clues to the overall geologic and environmental history
  • scientists goal is to compare the floor of Gale Crater to the sedimentary layers of 3 mile high (5 kilometer high) Mount Sharp
  • Waypoint 1 is just over 1 mile along the approximately 5.3-mile (8.6-kilometer) route from ‘Glenelg’ to the entry point at the base of Mount Sharp
  • Curiosity spent over six months investigating the ‘Yellowknife Bay’ area inside Glenelg before departing on July 4, 2013
  • On Sept. 5, Curiosity set a new one-day distance driving record for the longest drive yet by advancing 464 feet (141.5 meters) on her 13th month
  • As Curiosity neared Waypoint 1 she stopped at a rise called ‘Panorama Point’ on Sept. 7
  • will not conduct any drilling here or at the other waypoints
  • unless there is some truly remarkable discovery
  • If all goes well Curiosity could reach the entry point to Mount Sharp sometime during Spring 2014, at her current driving pace
Mars Base

New drug raises potential for cancer treatment revolution - 0 views

  • A new study
  • has developed a new drug that can manipulate the body's natural signalling and energy systems, allowing the body to attack and shut down cancerous cells.
  • ZL105,
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  • the drug is a compound based on the precious metal iridium
  • The study has found ZL105 could potentially replace currently used anticancer drugs
  • which become less effective over time, cause a wide-range of side-effects and damage healthy cells as well as cancerous.
  • study co-author
  • said "The energy-producing machinery in cancer cells works to the limit as it attempts to keep up with quick proliferation and invasion
  • This makes cancer cells susceptible to minor changes in the cell 'power-house'.
  • drug pushes cancer cells over the limit causing them to slow and shut down, whilst normal cells can cope with its effects
  • Preliminary data indicate that the novel drug may be ten times more effective in treating ovarian, colon, melanoma, renal, and some breast cancers, according to data obtained by the US National Cancer Institute
  • researchers now aim to expand the study to cancers that are inherently resistant to existing drugs and to those which have developed resistance after a first round of chemotherapy treatments.
  • Existing cancer treatments often become less effective after the first course, as cancer cells learn how they are being attacked
  • The drug we have developed is a catalyst and is active at low doses
  • It can attack cancer cells in multiple ways at the same time, so the cancer is less able to adapt to the treatment
  • means the new drugs could be much more effective than existing treatments
  • Platinum-based drugs are used in nearly 50% of all chemotherapeutic regimens
  • damaging DNA and cannot select between cancerous and non-cancerous cells
  • leading to a wide-range of side-effects from renal failure to neurotoxicity, ototoxicity, nausea and vomiting
  • the new iridium-based drug is specifically designed not to attack DNA,
  • growth
  • novel mechanism of action, meaning that it could not only dramatically slow down and halt cancer growth, but also significantly reduce the side effects
  • This research could also lead to substantial improvements in cancer survival rates
Mars Base

ESTCube-1 - Wikipedia, the free encyclopedia - 0 views

  • scheduled to be launched to orbit in second half of 2013
  • Student Satellite is an educational project that university and high school students can participate in
  • The CubeSat standard for nanosatellites was followed during the engineering of ESTCube-1, resulting in a 10x10x11.35 cm cube, with a volume of 1 liter and a mass of 1.048 kg.
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  • According to the CubeSat standard there are three different sized CubeSats corresponding to size 1U, 2U and 3U. Base side lengths are the same but height is 2 to 3 times bigger than 1U CubeSats
  • Mass is also set in CubeSat standard, the highest possible mass for 1U CubeSat is 1300 grams, 2U CubeSat 2600 grams and 3U CubeSat 4000 grams
  • CubeSat base side length must be 100.0±0.1 millimeters and satellite height must be 113.5±0.1 mm
  • the Estonian satellite
  • a 1U CubeSat
  • Although
  • its main purpose was to educate students, the satellite does have a scientific purpose.
  • On board of the satellite is an electric solar wind sail (e-sail) which was created by a Finnish scientist Pekka Janhunen
  • it is the first real experimentation of the e-sail
  • 10 meters of e-sail 50 to 20 micrometers thick wire of high-technology structure so-called Heytether will be deployed from the satellite.
  • The deployment of the Heytether can be detected by decrease of the satellite's speed of rotation or by a on-board camera
  • To control the loaded solar wind sail elements interaction with the plasma surrounding the earth and the effect it has on the spacecraft spinning speed the spacecraft has two on-board nanotechnologic electron emitters/gun
  • The electron emitters are connected to the e-sail element and by shooting out electrons it loads the e-sail element positively to 500 volts
  • The positive ions in the plasma push the e-sail element and have an influence on the satellites rotation speed
  • The effect of the e-sail is measured by the change in rotation speed
  • The camera is used to take a picture of Earth and the successfully deployed Heytether. [edit]
  • ESTCube-1 will be sent to orbit by the European Space Agency's rocket Vega in spring of 2013
  • Start in spring of 2013
  • Half an hour after the satellites deployment from the start capsule satellites antennas will be opened and radio transmitter and important subsystems will be switched on
  • First days or weeks will be used to test the satellite and set it to work on full capacity.
  • Orienting the satellite so the on-board camera will be faced to earth
  • trying to take a picture of Estonia
  • Rotating the satellite on an axis with a speed of 1 revolution per second
  • E-sail element deployment from the satellite by a centrifugal force and confirming the deployment via the on-board camera
  • Activating the electron emitter and loading the e-sail
  • Measuring the e-sails and Lorentz force by satellites revolutions per second
  • If possible using the negatively charged e-sail to take the satellite off orbit and burn it in the earths atmosphere
  • If everything goes perfect the mission can be completed within a few weeks to a month
  • Lifespan of the satellite
  • Measurements and weight
  • Scientific purpose
  • Communicating with the satellite
  • held by two International Amateur Radio Unions three registered frequencies
  • Periodic but very slow communication is done on a telegraphic signal on a frequency of 437.250 MHz
  • the most important satellite parameters are transmitted every 3 to 5 minutes
  • For fast connections FSK-modulation radio signal on a frequency of 437.505 MHz with a 9600 baud connection speed and AX.25 standard is used.
  • Somewhat slow connection speed is caused by the usage of amateur radio frequencies which allow a maximum of 25 kiloherz bandwidth
  • Fast connection is used only when the satellite has been given a specific
  • Using the GFSK-modulation maximum possible connection speed is 19,200 bits per second
  • Software
  • FreeRTOS on the satellite's Command and Data Handling System and camera module
  • TinyOS on the satellite's communication module
  • Financing and costs
  • Cheapest possibility to send a satellite onto orbit is offered by European Space Agency. Because Estonia is an associated member of ESA most of the launch expenses (about 70,000 euros) will be covered from Estonian member fee for educational expenses. With the launch total expenses for the project are approximately 100,000 euros.
Mars Base

Heart repair breakthroughs replace surgeon's knife - 0 views

  • Many problems that once required sawing through the breastbone and opening up the chest for open heart surgery now can be treated
  • through a tube
  • These minimal procedures used to be done just to unclog arteries and correct less common heart rhythm problems
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  • Now some patients are getting such repairs for valves, irregular heartbeats, holes in the heart and other defects—without major surgery
  • Doctors even are testing ways to treat high blood pressure with some of these new approaches
  • Instead of opening the chest, we're able to put catheters in through the leg, sometimes through the arm
  • Many patients after having this kind of procedure in a day or two can go home
  • It may lead to cheaper treatment, although the initial cost of the novel devices often offsets the savings from shorter hospital stays
  • Not everyone can have catheter treatment, and some promising devices have hit snags in testing
  • Others on the market now are so new that it will take several years to see if their results last as long as the benefits from surgery do.
  • these procedures have allowed many people too old or frail for an operation to get help for problems that otherwise would likely kill them
  • You can do these on 90-year-old patients
  • also offer an option for people who cannot tolerate long-term use of blood thinners or other drugs to manage their conditions
  • Heart valves
  • Millions of people have leaky heart valves. Each year, more than 100,000 people in the United States alone have surgery for them
  • Without a valve replacement operation, half of these patients die within two years, yet many are too weak to have one.
  • just over a year ago,
  • Edwards Lifesciences Corp. won approval to sell an artificial aortic valve flexible and small enough to fit into a catheter and be wedged inside the bad one
  • At first it was just for inoperable patients. Last fall, use was expanded to include people able to have surgery but at high risk of complications.
  • Catheter-based treatments for other valves also are in testing. One for the mitral valve
  • mixed review by federal Food and Drug Administration advisers this week; whether it will win FDA approval is unclear. It is already sold in Europe
  • Heart rhythm problems
  • Catheters can contain tools to vaporize or "ablate" bits of heart tissue that cause abnormal signals that control the heartbeat
  • Now catheter ablation is being used for the most common rhythm problem—atrial fibrillation, which plagues about 3 million Americans and 15 million people worldwide.
  • Ablation addresses the underlying rhythm problem. To address the stroke risk from pooled blood, several novel devices aim to plug or seal off the pouch
  • The upper chambers of the heart quiver or beat too fast or too slow. That lets blood pool in a small pouch off one of these chambers
  • Clots can form in the pouch and travel to the brain, causing a stroke
  • a tiny lasso to cinch the pouch shut. It uses two catheters that act like chopsticks. One goes through a blood vessel and into the pouch to help guide placement of the device, which is contained in a second catheter poked under the ribs to the outside of the heart. A loop is released to circle the top of the pouch where it meets the heart, sealing off the pouch.
  • A different kind of device
  • sold in Europe and parts of Asia, but is pending before the FDA in the U.S
  • like a tiny umbrella pushed through a vein and then opened inside the heart to plug the troublesome pouch.
  • Early results from a pivotal study released by the company suggested it would miss a key goal, making its future in the U.S. uncertain.
  • Heart defects
  • St. Jude Medical Inc.'s Amplatzer is a fabric-mesh patch threaded through catheters to plug the hole
  • In two new studies, the device did not meet the main goal of lowering the risk of repeat strokes in people who had already suffered one, but some doctors were encouraged by other results
  • Сlogged arteries
  • The original catheter-based treatment—balloon angioplasty—is still used hundreds of thousands of times each year in the U.S. alone
  • A Japanese company, Terumo Corp., is one of the leaders of a new way to do it that is easier on patients—through a catheter in the arm rather than the groin
  • Newer stents that prop arteries open and then dissolve over time, aimed at reducing the risk of blood clots, also are in late-stage testing
  • High blood pressure
  • About
  • 1 billion people worldwide have high blood pressure, a major risk factor for heart attacks
  • Researchers are testing a possible long-term fix for dangerously high pressure that can't be controlled with multiple medications.
  • uses a catheter and radio waves to zap nerves, located near the kidneys, which fuel high blood pressure
  • At least one device is approved in Europe and several companies are testing devices in the United States
Mars Base

NASA Buys Private Inflatable Room for Space Station | Space.com - 0 views

  • NASA officials have said that BEAM could be on orbit about two years after getting an official go-ahead
  • The module will likely be launched by one of the agency's commerical cargo suppliers, California-based SpaceX or Virginia-based Orbital Sciences Corp
  • The company wants to launch and link up several of its larger expandable modules to create private space stations, which could be used by a variety of clients.
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  • Bigelow is also eyeing a possible outpost on the moon, for which the company envisions using its BA-330 modules (so named because they offer 330 cubic meters of usable internal volume).
  • Several BA-330 habitats, along with propulsion tanks and power units, would be joined together in space and then flown down to the lunar surface.
  • Lunar dirt would be piled over the modules to protect against radiation, thermal extremes and micrometeorite strikes.
Mars Base

Smartpen takes handwritten notes into mobile, cloud era - 0 views

  • When used on special paper, the pens record your every scribble with a built-in camera
  • they can also record audio at the same time and sync that audio with what you write
  • recently updated its lineup of pens for the cloud-based, mobile computing era
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  • Sky, the new smartpens sync with Evernote, the popular Internet-based notetaking and storage service, rather than with the user's computer. And they typically connect to Evernote directly through their built-in Wi-Fi radios
  • near a hotspot, their Sky pens will begin syncing their notes as soon as they stop recording them.
  • the new pens is that they - and the notes they record - are no longer tethered to an individual computer
  • Sky pen owners can send up to 500 megabytes of data for free from their smartpens. That's about 70 hours worth of recordings or 10,000 pages of notes
  • The two companies have built into Evernote a Livescribe player that allows users to see and hear their notes at the same time
  • Evernote arranges the notes by page in their notebook, but when you click or tap on the page, the Livescribe player will collect and display all the pages of notes from that particular recording.
  • the service scans them for recognizable characters and words so users can search them
  • has several shortcomings
  • the pen is married to Evernote. You can't choose to sync your notes with any other service
  • Another limitation of the Sky pen is that it can be slow to transfer recordings
  • All Livescribe pens allow users to replay audio recordings by simply tapping their pen on their written notes
  • you have to use them with company approved paper
  • does allow users to print out paper with the patterns on it, but if you want to use a notebook, you have to choose one approved by the company
Mars Base

Astronomers discover the largest structure in the universe - 0 views

  • The large quasar group (LQG) is so large that it would take a vehicle travelling at the speed of light some 4 billion years to cross it.
  • Quasars are the nuclei of galaxies from the early days of the universe that undergo brief periods of extremely high brightness that make them visible across huge distances.
  • 'brief' in astrophysics terms but actually last 10-100 million years.
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  • Since 1982 it has been known that quasars tend to group together in clumps or 'structures' of surprisingly large sizes, forming large quasar groups or LQGs.
  • the LQG which is so significant in size it also challenges the Cosmological Principle: the assumption that the universe, when viewed at a sufficiently large scale, looks the same no matter where you are observing it from.
  • The modern theory of cosmology is based on the work of Albert Einstein, and depends on the assumption of the Cosmological Principle
  • he Principle is assumed but has never been demonstrated observationally 'beyond reasonable doubt'.
  • the Milky Way, is separated from its nearest neighbour, the Andromeda Galaxy, by about 0.75 Megaparsecs (Mpc) or 2.5 million light-years.
  • Whole clusters of galaxies can be 2-3 Mpc
  • LQGs can be 200 Mpc or more across.
  • Based on the Cosmological Principle and the modern theory of cosmology, calculations suggest that astrophysicists should not be able to find a structure larger than 370 Mpc.
  • newly discovered LQG however has a typical dimension of 500 Mpc.
  • it is elongated, its longest dimension is 1200 Mpc (or 4 billion light years)
  • some 1600 times larger than the distance from the Milky Way to Andromed
Mars Base

Comet PanSTARRS: How to See it in March 2013 - 0 views

  • we could have the first naked eye comet of 2013 for northern hemisphere observers in early March
  • if it performs
  • The projected brightness curve
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  • Panoramic Survey Telescope and Rapid Response System (PanSTARRS) based on the summit of Haleakala on the island of Maui
  • comet brightened ahead of expectations and was first picked up by an amateur astronomer on March 28th of last year
  • Comet PanSTARRS is already an impressive sight for southern hemisphere observers
  • Comet PanSTARRS will then begin curving northward during the last week of February
  • the comet has a hyperbolic orbit inclined 84.2° degrees relative to the ecliptic
  • On an 110,000+ year orbit, this is more than likely Comet PanSTARRS first journey through the inner solar system
  • Comet PanSTARRS will reach an altitude of greater than 5° at dusk for northern hemisphere observers based around 30° north latitude looking low to the southwest starting on March 5th.
  • The comet will then begin gaining altitude
  • Keep in mind, Daylight Saving Time begins
  • looking for the comet around 7:00 pm local on the first week of March, it’ll be at 8:00 pm on the second week
  • After gaining
  • elevation from our northern hemisphere vantage point
  • will then begin running roughly parallel to the western horizon on each successive evening for mid-northern latitude observers
  • This first half of March is also when Comet PanSTARRS will have the potential to appear at its brightest
  • best case scenario, we’ll have a comet with a -1st magnitude coma and a tail pointing straight up from the horizon like an exclamation point.
  • worst case situation, we’ll have a +3rd magnitude fuzzy comet only visible through binoculars
  • if you observe the comet on no other night, be sure to check it out on the evening of March 12-13th
  • will be joined by a slim crescent Moon just over a day old.
  • Comet PanSTARRS will then continue its trek northward
  • for the remainder of March
  • By May 1st, Comet PanSTARRS will have dipped back down below naked eye visibility
Mars Base

Station-Bound Dragon Spacecraft's Mission Patch Unveiled | | Space.com - 0 views

  • The first of NASA's contracted cargo resupply flights to the International Space Station now has its own mission patch, courtesy of the company launching the spacecraft.
  • The flight, referred to as Commercial Resupply Services-1 (CRS-1), is the first of a dozen resupply flights for which NASA is paying SpaceX $1.6 billion to fly.
  • The CRS-1 mission patch, which borrows its shape from the Dragon capsule, shows the solar-powered spacecraft grappled by the space station's Canadarm2 robotic arm as it is being brought in to connect with the orbiting outpost's Harmony module
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  • Almost camouflaged with the patch's green-colored North American continent is a four leaf clover. The symbol for luck, the clover has become a regular feature on SpaceX's insignias since the Hawthorne, Calif.-based company's first successful Falcon 1 launch in September 2008
  • Based on pre-launch photos, the CRS-1 emblem does not appear on the Falcon 9 rocket or the Dragon capsule
  • embroidered versions of the patch may fly to the space station and back as part of the mission's Official Flight Kit (OFK) of mementos to be presented to NASA and SpaceX team members for a job well done.
Mars Base

Spray-on Antennas Make Their Mark - SIGNAL Magazine - 0 views

  • July 2001
  • radio antennas that are sprayed onto a surface
  • consist of a conductive substance sprayed over a template with a radio aerial pattern on
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  • the antenna material is available in the form of metal-based paints such as nickel or silver and carbon-graphite-based paints. To create an antenna, a template is placed on the desired surface, the paint is sprayed over it and a connector is attached.
Mars Base

How to find hidden treasures in the archive | ESA/Hubble - 0 views

  • How to find hidden treasures in the archive
  • The main interface to get at the Hubble data is the Hubble Legacy Archive website.
  • search box lets you look for objects based on their name or coordinates
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  • advanced search option is useful to restrict the search to specific instruments (cameras) on Hubble
  • recommend narrowing your search to give only results from ACS, WFC3 and WFPC2 – Hubble’s general purpose cameras.
  • Universe is a big place
  • there are many, many objects which Hubble has never studied
  • not all of Hubble’s observations are images
  • most observations are only released to the public a year after they have been made
  • scientists get the first chance to work with their data. These are marked “proprietary data, no preview”.
  • several options for how to display the results
  • easiest is to click on the images tab, which gives you preview images of all the results
  • Another useful view is the footprints tab, which shows the location of Hubble’s images overlaid on an image of the part of the sky where they are located
  • in most cases) offer an option to open the interactive display
  • opens the interactive tool which you can use to look at the image in more detail, and carry out basic image processing such as adjusting the zoom and changing the contrast and colour balance
  • lets you save your work as a JPEG.
  • process is entirely browser-based, and you need no special software
  • You can also download the data in FITS format
  • can then use
  • FITS Liberator
  • Photoshop
  • more sophisticated image processing
Chris Fisher

Russia wants to build manned base on moon - Technology & science - Space - Space.com - ... - 0 views

  • Russia is talking to NASA and the European Space Agency about building manned research colonies on the moon, according to Russian news reports.
Mars Base

Fun New App: MoonWalking - 0 views

  • January 12, 2012
  • app called MoonWalking allows you to bring Tranquility Base down to Earth
  • Using your iPhone or iPad as an interactive
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  • you can watch all the action, and even take pictures of the events with your iPhone
  • augmented-reality app that recreates Tranquility Base in your backyard or neighborhood park
  • download it from iTunes for only $.99.
  • is for iPhones and iPads only.
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