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Ensemble forecast charts of several different numerical weather prediction (NWP) models |Updated:||2 times per day, from 05:00 and 17:00 GMT| |Greenwich Mean Time:||12:00 GMT = 12:00 GMT| |Parameter:||Sea Level Pressure in hPa| |Description:||The surface chart (also known as surface synoptic chart) presents the distrib...
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"Electronegativity is the power of an atom when in a molecule to attract eletrons to itself." The electronegativity will depend upon a number of factors including other atoms in the molecule, the number of atoms coordinated to it, and the oxidation number for the atom. There are a number of ways to produce a set of num...
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Logic Devices from Neuronal Cultures (to design a novel neuronal device click here) Neurons in the brain perform amazing calculations in a flash, but if you put them into a dish they become sluggish and 'stupid' - i.e. their response repertoire is very limited. Our principal question is how the connections between the ...
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Academic Writing
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This is a schematic showing how atmospheres form. Click on image for full size The Origin of an Atmosphere There are four ideas for where the atmosphere comes from. Those four ideas are 1. that the planet-elements which made the planets made the atmosphere too, 2. that the atmosphere was drawn to the planet from the cl...
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GAINESVILLE, Fla. --- A University of Florida scientist has grown a living "brain" that can fly a simulated plane, giving scientists a novel way to observe how brain cells function as a network. 'Brain' In A Dish Acts As Autopilot, Living Computer University of Florida researcher Thomas DeMarse holds a glass dish on Oc...
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Protected by the following WLT projects: The Morelet’s Crocodile is also known as an Alligator, an Agarei, Brown Crocodile or Swamp Crocodile. These crocodiles are relatively small, usually less than 3m in length. They have a broad snout, and are greyish brown in colour with dark bands and spots on their bodies and tai...
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Science Fair Project Encyclopedia In optics Spherical aberration is an imperfection of telescopes and other instruments, which makes their focussing less than ideal due to the spherical shapes of the lenses and mirrors. This is an important effect, as spherical shapes are much easier to produce than aspherical and so m...
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Astronomers may have found some of the matter that has been missing from the universe, new research suggests. Scientists have long puzzled over why the amount of matter they can see -- in the form of luminous stars, galaxies and so forth -- doesn't seem to be enough to account for the huge gravitational attraction that...
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warning: format not a string literal and no format arguments What does this mean? GCC is saying that a function in printf style has a format string that it cannot check matches the format arguments. Here is some common code GLib code that causes this error: GError *error = ...; Why is this a problem? As error->messagec...
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Blog Action Day: the Methane Pulse Blog Action Day focuses this year on climate change, which, like everything else on this planet, is also a microbial matter. Howzat? Methane (CH4) is a greenhouse gas which has heat retention capability 23 times of that of CO2. Soil methanogens are the chief global producers of methan...
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#include <dlfcn.h> int dladdr(void *address, Dl_info_t *dlip); int dladdr1(void *address, Dl_info_t *dlip, void **info, int flags); The dladdr() and dladdr1() functions determine if the specified address is located within one of the mapped objects that make up the current applications address space. An address is deeme...
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The long term research program ICECUBE (Coastal Underwater Benthic Ecosystems) provides fundamental information on the structural and functional biodiversity of Antarctic coastal benthic ecosystems. The Antarctic marine ecosystem is under threat as a result of global climate change and other anthropogenic influences. C...
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[Very incomplete. Please extend as you learn more.] The parser is written using - Alex, for lexical analysis. Source file compiler/parser/Lexer.x - Happy, for the parser itself. Source file compiler/parser/Parser.y.pp. Note the .pp suffix; it is run through cpp to yield Parser.y. - RdrHsSyn, for Haskell support functio...
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In an impressive year for Israeli science, ISRAEL21c reviews some of its most popular stories of the year, from breakthroughs in cancer, to mind-controlled computing and solar windows. It was a year when Israeli scientists developed countless imaginative ways to try to reduce our carbon footprint, making giant strides ...
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Hello math experts, thanks for giving me the opportunity to post here. My maths education is limited to a 16 yr old's so your help is much appreciated. In my attachment, I have measured A, B and C in 112 different subjects. Using these measurements, I hope to come up with an approximate index that can be used to compar...
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August 05, 2012 Hitting France especially hard, the Europe 2003 heatwave left tens of thousands of people dead. A new statistical analysis argues that climate change was the cause of this and other extreme summer heat events. Image by: NASA. "This is not a climate model or a prediction but actual observations of weathe...
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A neuroscientist has linked the brains of two rats together, so when one of them pushes a lever - the other one does, too! The rats were trained to push a lever when a light went on, but after a while, electrodes were placed in the rodent's brains. Soon they had one rat pushing a level because of the light, and another...
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Luis Acosta / AFP - Getty Images This combination of pictures shows the moon in various stages of a total lunar eclipse as seen from Mexico City on Dec. 21. This eclipse takes place just hours before the December solstice, which marks the beginning of northern winter and southern summer. Jose Cabezas / AFP - Getty Imag...
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(PhysOrg.com) -- Scientists have used the NASA/ESA Hubble Space Telescope to observe a quasar accretion disc -- a glowing disc of matter that is slowly being sucked into its galaxy's central black hole. Their study makes use of a novel technique that uses gravitational lensing to give an immense boost to the power of t...
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Thin film has 'astonishing' ability to rotate light Apr 4, 2011 5 comments Physicists in Austria and Germany have taken the Faraday effect to a new extreme by rotating the polarization of light by 45° by passing it through an extremely thin film. This "giant Faraday effect" could someday be used to create optical trans...
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Description: Spotted Salamanders are large salamander, ranging from 6-9.5 inches (15-24 cm) in length. Ground color can be shades of black, gray or brown on its back, gray on its belly. Down each side of the back, there are two rows of orange and yellow spots; sometimes as many as 50. Ambystoma maculatum is considered ...
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|A Hollow-Ion Resonance of Unprecedented Strength| A so-called hollow ion is formed when core electrons are removed or excited to higher energy levels, leaving an empty inner shell. Such states can be produced in He-, a fundamental three-electron system and prototypical negative ion. The nuclear Coulomb attraction is e...
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|Visualizing Drought Recovery in Plants| |Thursday, 25 August 2011 15:34| How plants refill the vessels that transport water has been under debate for the last 30 years owing to the lack of an in vivo visualization tool at the appropriate temporal and spatial resolution. Now, data generated using high-resolution x-ray ...
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(Files in red–history) 8. Positive Ions 8H. Arrhenius, 1884 9. Magnetic trapping 9H. Poincaré, 1896 10. Trapped Motion 10H. Einstein, 1910 10a. Particle Drift 11. Explorers 1/3 11a. Geiger Counter 12. Rad. Belts 12H. Argus 1958 12a. Inner Belt 12b. Outer Belt 13. Fast Particles 14. Synch. Orbit Going in circlesThe fact...
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Recently, scientists from the University of Pittsburgh Schools of the Health Sciences (UPMC), Helicos Biosciences Corp., Integromics Inc., and the University of Geneva Medical School published an article in Nature showing that mammalian cells are capable of synthesizing RNA by copying RNA molecules directly. Contrary t...
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Cosmic dust clouds ripple across this infrared portrait of our Milky Way's galaxy, the Large Magellanic Cloud. In fact, the remarkable composite image from the Space Observatory and the Spitzer Space Telescope show that dust clouds fill this neighboring dwarf galaxy, much like dust along the plane of the Milky Way itse...
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Posted by U15626221 (U15626221) on Friday, 22nd February 2013 I don't understand the topic of gas exchange, can someone explain clearly but in detail please, a few example would help too. Much appreciated :D Posted by The Bitesize Science Teacher (U14392404) on Friday, 22nd February 2013 You have answers to this here: ...
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SAVING THE Devils River minnow In just about 50 years, the Devils River minnow has gone from being one of the most abundant native fishes in southern Texas to one of the rarest fishes in the world. Requiring clean spring waters for survival, populations of this tiny, shiny minnow have declined drastically as stream mod...
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The purpose of this section is to introduce the basic functionality of the library. There are quite a lot of exceptions and special cases, but discussion of them is postponed until later sections. In this section we give basic examples of using BLL lambda expressions in STL algorithm invocations. We start with some sim...
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Molten lava spewing into the ocean from an underwater volcano has been recorded on video for the very first time. An ROV [Remotely Operated Underwater Vehicle ] named Jason was 1,220 meters [4,000 feet] below the ocean surface roughly 500 kilometers [310 miles] east of Fiji Islands. A high definition [HD] camera was us...
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Simply begin typing or use the editing tools above to add to this article. Once you are finished and click submit, your modifications will be sent to our editors for review. atmospheric and cloud processes ...greater than 100 percent, with respect to a flat surface of H2O. The development of clouds in such a fashion, w...
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bromine (Br)Article Free Pass Bromine was discovered in 1826 by the French chemist Antoine-Jérôme Balard in the residues (bitterns) from the manufacture of sea salt at Montpellier. He liberated the element by passing chlorine through an aqueous solution of the residues, which contained magnesium bromide. Distillation o...
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Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-AES) Simultaneous Determination of Manganese and Nickel in Steel by Inductively Coupled Plasma Atomic Emission Spectrometry: pp. 106-108, 479-482, 486-487, and 492-494 in Harris text - To simultaneously determine the mass percentages of manganese and nickel i...
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Warm Climate Opens Boreal Forest to Pine Beetles Temperatures in boreal forests extending across Canada will soon be warm enough to accommodate mountain pine beetles. Until recently, cold winters confined the bark beetles to attacking trees west of the Rocky Mountains and south of the boreal forest. In British Columbia...
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Virginia Renewables - Wind Energy Historically, wind energy has been used for purposes as varied as pumping water, land and water transportation, and electrical generation. Today, the predominant commercial use of wind energy in the US is electricity generation. Availability of wind energy varies markedly from place to...
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The sea turtle resources of the Cocos (Keeling) Islands, Indian Ocean - The Sea Turtle Resources of the Cocos (Keeling) Islands (PDF - 996 KB) - 2008-2010 | Need another format? Contact us - The Sea Turtle Resources of the Cocos (Keeling) Islands (PDF - 996 KB) - 2006 | Need another format? Contact us About the Reports...
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The Caribbean monk seal (Monachus tropicalis), also known as the West Indian Monk seal and the West Indian seal, is a species that is believed to have become extinct in the 1950s (although there are unconfirmed sightings.) It is one of nineteen species of marine mammals in the family of true seals. Together with the fa...
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Invasive Control Methods Learn methods used to eliminate or control invasive aquatic species, including their pros and cons. Joshua Wiegert | The last couple installments of Conservation Corner have looked at invasive species, rather at length and to the point where my editor is begging me to get off this topic. With t...
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August 23, 2010 PASADENA, Calif. -- Tight double-star systems might not be the best places for life to spring up, according to a new study using data from NASA's Spitzer Space Telescope. The infrared observatory spotted a surprisingly large amount of dust around three mature, close-orbiting star pairs. Where did the du...
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With the aid of lasers, researchers have developed various two-photon absorption (2PA) based applications, which include biological imaging, 3-dimentional microfabrication, frequency up-converted lasing, optical power limiting, and photodynamic therapy etc. Unlike 2PA, five-photon absorption (5PA) related phenomenon, i...
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Home > News > Terahertz rays see into the nanoworld October 23rd, 2003 Terahertz rays see into the nanoworld A new form of imaging that could be particularly valuable in medicine can be used to see nanoscale objects, US researchers report. Terahertz (THz) promises an alternative to techniques such as X-ray, magnetic-re...
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Paul Marks, senior technology correspondent (Image: Vandenberg Air Force Base/US air force) China's space agency took the plaudits for successfully docking its crewed Shenzhou-9 spacecraft with its orbiting lab Tiangong-1 today, but the feat was slightly overshadowed by the weekend landing of the US X-37B spaceplane, w...
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|Jan12-12, 09:24 AM||#1| When a high voltage is applied across the electrodes of the discharge tube, and the pressure of the gas inside the tube is lowered, the electrical energy knocks out some of the electrons from the atoms. These constitute the cathode rays. How does electrical energy knocks out electrons is someth...
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Since timezone abbreviations are not well standardized, PostgreSQL provides a means to customize the set of abbreviations accepted by the server. The timezone_abbreviations run-time parameter determines the active set of abbreviations. While this parameter can be altered by any database user, the possible values for it...
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Researchers have designed a new kind of adaptive material with tunable transparency and wettability features - imagine a tent that blocks light on a dry and sunny day, and becomes transparent and water-repellent on a dim, rainy day. Or highly precise, self-adjusting contact lenses that also clean themselves. The new ma...
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Oct. 24, 2008 If the biofuel known as bioethanol is to make a major contribution to our fuel supplies, then we may well require the assistance of some tiny insect helpers, says Michael Scharf, an assistant professor of entomology at the University of Florida, Gainesville. In a review to be published in Biofuels, Biopro...
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Oct. 6, 2009 The first demonstration of a renewable method for hydrogen production from wastewater using a microbial electrolysis system is underway at the Napa Wine Company in Oakville. The refrigerator-sized hydrogen generator will take winery wastewater, and using bacteria and a small amount of electrical energy, co...
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DELHI — Stargazers in India are hoping to study the sun more closely than has ever been done before. The Indian Institute of Astrophysics (IIA), the country’s premier astronomical institute, has submitted a proposal to the Indian government for setting up a solar telescope along the Indo-China border. The telescope wil...
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Ancient City of Galaxies Looks Surprisingly Modern By Adam Hadhazy Astronomers are a bit like archeologists as they dig back through space and time searching for remnants of the early universe. In a recent deep excavation, courtesy of NASA's Spitzer Space Telescope, astronomers have unearthed what may be the most dista...
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|PL/SQL User's Guide and Reference 10g Release 1 (10.1) Part Number B10807-01 return_value := SCN_TO_TIMESTAMP(number); SCN_TO_TIMESTAMP takes an argument that represents a system change number (SCN) and returns the timestamp associated with that SCN. The returned value has the datatype This function is part of the fla...
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New data suggests that Mercury has undergone much more dynamic processes than previously believed and that its core is unlike any of the other rocky planets in our solar system. Nasa's Messenger spacecraft, which has been in orbit around the solar system's smallest and innermost planet for just over a year, has beamed ...
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The gecko is getting a lot of exposure in insurance commercials on TV, but that’s not why the lizard has stimulated scientists’ imaginations. Researchers are paying heed because geckoes and other lizards and insects can run up, down or sideways on nearly any surface, wall or ceiling, without falling off. Their remarkab...
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Scientists discover black hole with a mass of 14 billion suns New Delhi: Astronomers have discovered a ginormous black hole in a galaxy 220 million light years away that could change our understanding of how galaxies evolve. The black hole has a mass of 14 billion suns and lies at the centre of a lens-shaped galaxy, ca...
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Bryogeography of the Hypopterygiaceae The moss family Hypopterygiaceae contains eight genera. This page discusses the bryogeography of the family with hypotheses as to how some the family's current distribution arose. The bulk of the information is taken from Chapter 7 of Kruijer's monograph listed in the references at...
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The subject of the oceans really can illustrate the reality that we are all in this Earth experience together, really can show the fallacy of the "all ___ is local" mantra, because what one nation does environmentally will have an effect on the other nations within the global community. Scientific papers are constantly...
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A Warm and Dry May May 2007 Climate Summary New Jersey State Climatologist Center for Environmental Prediction, Cook College/NJAES, Rutgers University June 3, 2007 The record wet conditions of April were only a memory this past May. Dry weather enveloped the Garden State, where, on average, only 1.55" of precipitation ...
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Go Up to Keywords, Alphabetical Listing Index The bitand operator is an alternative representation of the &operator (bitwise AND). The bitwise AND operator compares each bit of the first operand to the corresponding bit of the second operand When both bits are 1, the corresponding result bit is set to 1. Otherwise, the...
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Photograph courtesy Zeb Hogan - Average life span in the wild: - More than 60 years - Up to 10 ft (3 m) - Up to 650 lbs (295 kg) - Group name: - Protection status: - Did you know? - The largest freshwater fish ever recorded was a Mekong giant catfish caught in northern Thailand in 2005. It was nearly 9 ft long (2.7 m) ...
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WHOI Website Takes Viewers Deep into the Gulf Underwater vehicles will be used by Woods Hole Oceanographic Institute and other university scientists to learn if the Deepwater Horizon oil spill affected animals in the Gulf of Mexico; the public is invited to take a look via the Dive and Discover website. Using the human...
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Science Keywords>LAND SURFACE North American ASTER Land Surface Emissivity DatabaseEntry ID: naalsed Abstract: The North American Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) Land Surface Emissivity Database (NAALSED) covers the continent with 3,327 1 degree (°) x 1° tiles of 100-meter (m) res...
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Ozone hole predicted for North Polegreenspun.com : LUSENET : Grassroots Information Coordination Center (GICC) : One Thread Fri, 27 Oct 2000 Ozone hole predicted for North Pole A leading British scientist has predicted that an ozone hole will start developing over the North Pole, similar to the badly damaged ozone laye...
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The broad concept of Oecophoridae, as treated by Clarke (1941), Hodges (1974) and others has been narrowed to include only two subfamilies: Oecophorinae and Stathmopodinae (Hodges, 1998). The family lacks autapomorphies and has been defined by two polymorphic parallelisms and one reversal: 1) second abdominal sternum w...
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A Nasa animation demonstrates the agency's plan to capture an asteroid in the moon's orbit. The idea is for a robot to catch a small asteroid by pushing or pulling it into a stable orbit. This would allow astronauts to explore the rock and test samples. Nasa hopes to achieve this by 2021. The mission forms part of a lo...
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Magnetism in Space The study of the magnetism found in the planets and the sun of our solar system has been a very exciting field during the last 100 years. Of course, trying to understand the magnetism within our own planet earth has been going on for a very long time, and only recently (within the 1990s) has a reason...
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Patches of unusually fresh water on an ocean’s surface can rev up hurricanes and typhoons, a new study reveals. Researchers first noticed the phenomenon for 2008’s Hurricane Omar (shown as a Category 1 storm on 15 October), which surged to Category 4 strength when it crossed a thick layer of fresher-than-normal surface...
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Violently shaking a box of breakfast cereal does not make the particles act exactly like molecules in an ideal gas, but there are similarities. According to the 23 October PRL there is a simple mathematical expression for the distribution of particle velocities in a shaken box of steel beads which–like the formula for ...
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Skinner presentation at GEOIDE 2009 The Geoweb Goes Wild: Developing A Participatory Geoweb Site As An Aid In Determining Rare Species Distribution, Randy Skinner, Yolanda Wiersma Erioderma pedicellatum (Ep), or boreal felt lichen, is critically endangered worldwide. Newfoundland currently has 95% of the known world po...
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Mission Type: Lander, Orbiter Launch Vehicle: Ariane-5 Launch Site: Europe's Spaceport in Kourou, French Guiana NASA Center: Jet Propulsion Laboratory Spacecraft Mass: Orbiter:2,900 kg (at launch) Lander: 100 kg 1) ALICE Ultraviolet Imaging Spectrometer 2) CONSERT Comet Nucleus Sounding 3) COSIMA Cometary Secondary Ion...
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After traveling for more than eight months and traversing 352 million miles, NASA's Curiosity rover is now on Mars. From conception to landing, the rover mission took eleven years to complete and cost an estimated $2.6 billion. NASA scientist Jim Garvin appears on Starting Point this morning to discuss the significance...
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Looking east on a balmy August afternoon, we are struck by the towering clouds rising into the atmosphere. We are all familiar with the persistent marine layer clouds of early summer. Winter brings wet storm clouds from the ocean.Everyone has looked into the sky and projected a common figure to a puffy white mass of mo...
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By Kevin McGee One was photographed at Tiddesley Wood on 31.7.01. This is my 1st record for the site and one which puzzles me as I visit the wood regularly and have not seen it there before, and to-date I have yet to meet somebody that has! This nationally scarce species is readily seen during daytime at Monkwood, espe...
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MIT Physics News Spotlight When the first stars blinked on The very first stars may have turned on when the universe was 750 million years old. Jennifer Chu, MIT News Office December 5, 2012 As far back in time as astronomers have been able to see, the universe has had some trace of heavy elements, such as carbon and o...
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Csóka, GY., and Kovács, T. 1999. Xylophagous insects. Forest Research Institute. Erdészeti Turományos Intézet. Agroinform Kiadó, Budapest. 189 pp. The xylophagous insects in their different developmental stages are eaten by many species of animals. In this chapter we discuss the most characteristic groups of these pred...
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Aerodynamic drag is the resistance (retarding effect) applied to a body as it passes through the air. It is made up of two components, caused by pressure and by friction. Resistance caused by pressure occurs because there is a difference in air pressure between the front and rear surfaces of the body. This has to be ov...
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Posted on Thursday 26th May 2011 A University of Birmingham scientist is set to join weather experts from across the country to help the local community learn more about weather and the climate with hands-on activities and demonstrations at a week-long roadshow coming to the city this half-term. Organised by the Big Lo...
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Simply begin typing or use the editing tools above to add to this article. Once you are finished and click submit, your modifications will be sent to our editors for review. psychological testing and measurement ...of odours), it constitutes an ordinal scale. An interval scale has equal units and an arbitrarily assigne...
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Interesting things occur when solutes are added to water. Freezing is inhibited and temperature decreases. Practical applications can be had from these properties. Duration: 4:37. VIDEO CHECK QUESTIONS 8.4a What happens to the rate of freezing when a solute such as NaCl is added to the water? 8.4b How can you increase ...
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An aqueous antifreeze solution is 58.0% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.075 g/cm3. Calculate molality, molarity, and mole fraction of ethylene glycol. y=x is a particular solution for 2(x^2)y''+xy'+y=0 find the full solution 2 Hailstone Sequences [12 marks] A hailstone sequence is a s...
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wchar_t* wcstok (wchar_t* wcs, const wchar_t* delimiters); Split wide string into tokens A sequence of calls to this function split wcs into tokens, which are sequences of contiguous wide characters separated by any of the wide characters that are part of delimiters. On a first call, the function expects a C wide strin...
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Most of the time the Sun is quiet, shining in space beaming out light and heat. But every eleven years it gets cranky – covered in dark spots and fiery eruptions. This is a time called solar maximum, or solar max for short. The Sun, like all stars, is a big ball of plasma – mostly hydrogen and helium. Because the Sun i...
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Everything I need to know about 3D solar cells What is it? Every day the sun showers Earth with several thousand times as much energy as we use. Harnessing solar energy is not new in fact, development of solar energy dates back more than 100 years. Over the years, many companies have worked to increase the efficiency o...
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Climate Change and Man 's Evolution May 21, 2013 05:31 PM - Andy Soos, ENN Climate change is bad yet it happens whether we like or not. Then again it may not be so bad. Rapid climate change during the Middle Stone Age, between 80,000 and 40,000 years ago, during the Middle Stone Age, sparked surges in cultural innovati...
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AusGeo News June 2010 Issue No. 98 New geomagnetic field models released Regional and global geomagnetic models have a wide range of applications in the general community as well as the scientific, industrial and engineering sectors. The Australian regional model is particularly useful for anyone using a compass for na...
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A comment is text that is written in a program only for the sake of humans that read the program, and that has no effect on the meaning of the program. In Lisp, a semicolon (‘;’) starts a comment if it is not within a string or character constant. The comment continues to the end of line. The Lisp reader discards comme...
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Insects Top Newly Discovered Species List Invertebrates account for nearly 75 percent of the 19,232 species newly known to science, according to the 2011 State of Observed Species report. CREDIT: International Institute for Species Exploration | Arizona State University An annual inventory of newly discovered species l...
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A significant factor in getting any job done properly is having the right tools. This is true whether you are building a kitchen, fixing your car or developing embedded software. Of course, it is the last of these that I am interested in here. I have been evangelizing on this topic for years [decades!]. The problem is ...
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21 October 2011 New research suggests that hitch-hiking, once believed to be the exclusive domain of beat poets and wanderers, is in fact an activity that daring members of the animal kingdom engage in. And it may lead to a serious ecological problem. Dr David Chapple, Dr Bob Wong and Sarah Simmonds from Monash Univers...
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Home > News > Crossing Over April 6th, 2007 Microarrays have also made the transition from the drug discovery market to point-of-care application. Researchers typically apply microarrays to genotyping, mutation screening, gene expression, and protein-interaction studies. Typically microarrays provide ever more informat...
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In their natural environment, plant and animal populations are kept in check by natural controls - predators and food supply. When a new species is introduced - accidently or intentionally - these balances can be thrown off and the consequences can be devastating. While not all "non-native" species cause problems, some...
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Read more: "Climate change: It's even worse than we thought" If we stopped pumping more CO2 into the atmosphere now, we'd have a very good chance of avoiding a big hike in temperature. But there is no sign of that happening. Annual emissions fell only slightly after 2008 - the biggest financial crisis since the Great D...
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Scientists, including those from the Natural History Museum, have developed the world's first underwater observatory connected to the internet, creating a window into the ocean, one of the least-studied environments on our planet. Live images are streamed online from the observatory under the sea, which means scientist...
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All of the plutonium isotopes, which have a very high biotoxicity, are man-made and result from various nuclear activities. Plutonium-241 is a very low-energy beta emitter with Eβ(max) = (20.8 ± 0.2) keV; Eβ(ave) = (5.23 ± 0.5) keV and a half-life of (5234 ± 15) that decays primarily to the ground state of 241Am, an em...
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Image Formation in Plane Mirrors Visit The Physics Classroom's Flickr Galleries and enjoy a photo overview of the topic of reflection and mirrors. Other Multiple Mirror Systems Besides right angle mirror systems, there is a wealth of other multiple mirror systems that involve two or more mirrors. If two plane mirrors a...
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Geoscientist Frederik Simons sits before a cross-sectional map of the Earth, showing a model of seismic wave speeds through the crust and mantle. The land and seas (outlined in the center) are surrounded by colors representing the waves' different velocities, which are affected by the Earth's density and temperature. B...
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AcetylcholinesteraseJune 2004 Molecule of the Month by David Goodsell doi: 10.2210/rcsb_pdb/mom_2004_6 (PDF Version, ePub Version ) Every time you move a muscle and every time you think a thought, your nerve cells are hard at work. They are processing information: receiving signals, deciding what to do with them, and d...
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Feb. 7, 2013 Although scientists have been aware that magnetism and electricity are two sides of the same proverbial coin for almost 150 years, researchers are still trying to find new ways to use a material's electric behavior to influence its magnetic behavior, or vice versa. Thanks to new research by an internationa...
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In recent weeks, some of the most powerful solar flares ever witnessed have sent electrically charged gas shooting toward the earth in so-called coronal mass ejections. But even without such impressive displays, the sun provides a wealth of energy to our planet. Unfortunately, efforts to mass produce solar cells to har...
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It's snowing on Mars and winter is icumen in - to misquote the Middle English paean to springtime. Scientists studying the coded signals from the lander Phoenix on the planet's arctic surface detected the snow falling lightly from clouds drifting across the sky some 2 1/2 miles above the spacecraft, said James Whiteway...
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From: Olie Lamb (email@example.com) Date: Mon Sep 19 2005 - 20:03:17 MDT One of the simplest things I've learned from Neuroscience, with the most The less conscious an activity is, the less brain area it tends to involve. That is, simple unconscious activities like blinking tend to be entirely localised, however, when ...
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Ocean currents emerge as climate change hot-spots As they warm, they shift A global study that assesses the temperature change in ocean currents has made two findings – one surprising, the other less so. The unsurprising outcome is that as the Earth’s temperature rises, so does the temps in a collection of major ocean ...
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