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Hi O Silver
Charge It, Please
Chemists are always changing things. How to tune the propensity of a given oxidation state to oxidize or reduce? One way to do it is by changing the charge on the molecule that contains the oxidizing or reducing center. The syntheses of the silver fluorides cited above contain some splendi... | <urn:uuid:418ea719-abfb-480e-9f11-d5d4586d1c53> | 2.65625 | 402 | Comment Section | Science & Tech. | 51.061496 | 4,200 |
© European Geosciences Union 2008
The role of the observed tropical convection in the generation of frost events in the southern cone of South America
1Centro de Investigación Científica y de Transferencia Tecnológica a la Producción (CICYTTP/CONICET), Diamante, Argentina
2Departamento de Ciências Atmosféricas, Univers... | <urn:uuid:0bbd186b-01f7-4c06-a62f-e0852846a771> | 2.71875 | 492 | Academic Writing | Science & Tech. | -4.092778 | 4,201 |
Jun 11, 2010
Sun Storm Makes Earth Blackout in 2013 Possible
Written under: Science
News of a solar storm coming in the next few years is making people believe that there is a possibility of an Earth blackout in 2013.
“The sun is waking up from a deep slumber, and in the next few years we expect to see much higher leve... | <urn:uuid:bcc04c07-1653-410c-9dc8-3e4cebbb7a69> | 2.90625 | 259 | News Article | Science & Tech. | 61.149003 | 4,202 |
Analytical chemistry is concerned with the measurement of the chemical compostion of unknown substances using exisitng instrumental techniques, and the development or application of new techniques and instruments. Anytime a measurement is made with an instrument, there is an error, a deviation from the true value, ineh... | <urn:uuid:d3288014-8756-472d-87d8-73378cb85123> | 3.75 | 483 | Tutorial | Science & Tech. | 20.570477 | 4,203 |
DLR as an albatross - Biologist Dr Ulrike Friedrich manages parabolic flights on behalf of DLR
30 January 2009
"When the aircraft enters weightless conditions and you are lifted up from the floor and start to float, huge amounts of excitement hormones are released in your body", enthuses Dr Ulrike Friedrich. In her cap... | <urn:uuid:6a6cda08-fb21-41a9-9a14-33342db64e07> | 2.9375 | 1,328 | About (Org.) | Science & Tech. | 33.690354 | 4,204 |
NASA’s Dawn spacecraft obtained this image with its framing camera on August 12, 2011. This image was taken through the framing camera’s clear filter. The image has a resolution of about 260 meters per pixel.
The Dawn mission to Vesta and Ceres is managed by the Jet Propulsion Laboratory, Pasadena, Calif., for NASA's S... | <urn:uuid:0cf44b33-0b32-4fa6-b283-f045e3964d4b> | 3.140625 | 281 | Knowledge Article | Science & Tech. | 45.544221 | 4,205 |
By yamalaris on Tuesday, July 22, 2008 - 02:52 pm: Edit Post
I understand that northern lights are the result of activity from the surface of our Sun, is there a time of the year this activity is more prevalent? Is there a way to predict or forecast northern lights activity?
Thank you in advance for your answer.
By adm... | <urn:uuid:85e61ffc-e571-4029-b042-1d05e7d29559> | 3.09375 | 729 | Comment Section | Science & Tech. | 47.356106 | 4,206 |
UK Overseas Territories: key achievements 2006 - 2011
Activities of the UK Overseas Territories (UKOTs) Science Team support on the ground conservation and our overall strategy is to enable UKOTs to implement all targets of the Global Strategy for Plant Conservation (GSPC).
UK Overseas Territories that were formerly co... | <urn:uuid:0dfdc8de-e6bc-4524-a318-98c51de21b59> | 2.984375 | 1,867 | About (Org.) | Science & Tech. | 16.809386 | 4,207 |
Possible hints of the Higgs remain in latest analyses: not strong enough to claim discovery
December 13, 2011
Two experiments at the Large Hadron Collider have nearly eliminated the space in which the Higgs boson could dwell, scientists announced in a seminar held at CERN today. However, the ATLAS and CMS experiments s... | <urn:uuid:3356cf38-2126-432e-9615-6fbf192e3958> | 3.09375 | 982 | News Article | Science & Tech. | 47.171563 | 4,208 |
When it comes to camouflage, ground-nesting Japanese quail are experts. That's based on new evidence published online on January 17 in Current Biology that mother quail "know" the patterning of their own eggs and choose laying spots to hide them best.
"Not only are the eggs camouflaged, but the birds choose to lay thei... | <urn:uuid:6ab1617b-a395-411e-b6f6-60d3a0658656> | 3.453125 | 497 | News Article | Science & Tech. | 45.991319 | 4,209 |
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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Topic review (newest first)
Kaboobly doo! Oh wait, I liked A too. Brilliant answer then.
It turned out to be .217 as a correct answer
Yes, you are right. If shape A is tran... | <urn:uuid:49dd6808-3ec2-4601-8db5-4d27db347d23> | 2.953125 | 334 | Comment Section | Science & Tech. | 98.055277 | 4,210 |
MessageToEagle.com - A vast structure of satellite galaxies and clusters of stars surrounding our Galaxy,
stretching out across a million light years has been discovered by astronomers from the University of Bonn in Germany .
The work challenges the existence of dark matter, part of the standard model for the evolution... | <urn:uuid:f1a1789d-f464-4a0b-ba87-7220382dba11> | 3.65625 | 1,394 | Content Listing | Science & Tech. | 42.685142 | 4,211 |
DURHAM, N.C. ? The ability to tell the difference between crystals that formed naturally and those formed by human activity can be important to archaeologists in the field. This can be a crucial bit of information in determining the ancient activities that took place at a site, yet archaeologists often wait for months ... | <urn:uuid:81cc1c08-851b-46f4-bee2-16fa8d3098fe> | 3.796875 | 806 | News Article | Science & Tech. | 26.156579 | 4,212 |
Designing a JSF Page
The first thing you want to do after getting the page open in the
designer is to expand the palette on the right hand side of the
design by clicking the left arrow on the top of it:
The palette will read the tag libraries out of your build path
and load them so you can utilize the Drag and Drop int... | <urn:uuid:cdb624d1-7490-4771-b36d-70df08f4b5a9> | 2.6875 | 820 | Tutorial | Software Dev. | 48.862918 | 4,213 |
Updated on Jan. 3 at 7:18 p.m. ET.
Even four times as deep as most scuba divers venture, the Great Barrier Reef blooms. A new exploration by a remote-operated submersible has found the reef's deepest coral yet.
The coral Leptoseris is living 410 feet (125 meters) below the ocean's surface, a discovery that expedition l... | <urn:uuid:e7831604-cfae-4e24-b492-22851c730fa2> | 3.375 | 795 | News Article | Science & Tech. | 51.048815 | 4,214 |
Gulf Oil Spill: Scientists Develop New Model for Deep-water Oil Spills
Call for a "whole new type" of marine ecology
April 20, 2012
On the second anniversary of the Deepwater Horizon blowout, a panel of researchers is offering a new model for understanding what happened in the disaster, how to think of such events in t... | <urn:uuid:d52afc6f-3ed2-4241-abc9-113838b96454> | 3.25 | 1,513 | News Article | Science & Tech. | 52.459069 | 4,215 |
From Pegaso Wiki
Suspended load refers to that part of the total sediment transport which is maintained in suspension by turbulence in the flowing water for considerable periods of time without contact with the stream bed. It moves with practically the same velocity as that of the flowing water. .
- Definitions, proces... | <urn:uuid:638dd197-a395-4d7c-a9ac-73f757d022ed> | 2.515625 | 129 | Knowledge Article | Science & Tech. | 38.571109 | 4,216 |
A student's investigation into biofuel finds support and mentorship in the Science Buddies Ask an Expert forums.
Having utilized Science Buddies resources in previous years, Naima Raza was no stranger to science fairs or to Science Buddies when she consulted Experts in the Ask an Expert forum about her 8th grade enviro... | <urn:uuid:d89a13a2-ee50-49a7-a6db-23f11cd30ca4> | 3.171875 | 1,845 | About (Org.) | Science & Tech. | 33.543557 | 4,217 |
Jan. 30, 2009 The genetic variation within a species can be significant, but very little of that variation results in clear differences in morphology or other phenotypes. Much of the diversity remains hidden ‘under the surface’ in buffered form.
This has been revealed by research conducted by the University of Groninge... | <urn:uuid:06adbd6b-2fdd-429a-a731-2afdedbd34c1> | 3.6875 | 911 | Knowledge Article | Science & Tech. | 37.046716 | 4,218 |
Aug. 20, 2009 New images released today by ESO delve into the heart of a cosmic cloud, called RCW 38, crowded with budding stars and planetary systems. There, young stars bombard fledgling suns and planets with powerful winds and blazing light, helped in their task by short-lived, massive stars that explode as supernov... | <urn:uuid:55c6da01-6445-4cdc-9a62-60636b19a02a> | 3.625 | 752 | News Article | Science & Tech. | 39.214375 | 4,219 |
May 24, 2011 NASA's two Gravity Recovery And Interior Laboratory (Grail) spacecraft have completed all assembly and testing prior to shipment to Florida.
As seen in the photo, taken April 29, technicians installed lifting brackets prior to hoisting the 200-kilogram (440- pound) Grail-A spacecraft out of a vacuum chambe... | <urn:uuid:6f14e97d-d694-4fba-8162-e26f24e915ad> | 3.09375 | 354 | News (Org.) | Science & Tech. | 43.302681 | 4,220 |
The formula for the volume of pyramids and cones tells you how much space is inside each object.
For these two solid shapes, the volume formula is the same: it's one third of the area of the base times the height.
Why? Here it is in a nutshell. The volume of three pyramids is equal to the volume of one prism with the s... | <urn:uuid:ab457edf-8b07-46e8-8e76-83ef8c7b69b2> | 4.34375 | 223 | Tutorial | Science & Tech. | 85.945556 | 4,221 |
Cleaner Coal through Computation
Stanford researcher uses Ranger to design better pollution controls
In the 1970s, scientists in the U.S. noticed that noxious chemicals discharged from coal-fired power plants — specifically nitrogen oxide (NOx) and sulfur dioxide (SO2) — were reacting in the atmosphere to produce acid ... | <urn:uuid:b6f38b45-f421-4091-bbbb-b79b9176dd49> | 3.953125 | 1,732 | News (Org.) | Science & Tech. | 31.28931 | 4,222 |
Same Genes, Different Doses
Distant DNA controls gene activity
Context: Even in cases where two people share the same gene, they can produce widely differing amounts of the protein the gene codes for. This can lead to differences in physical characteristics, and it can also mean the difference between sickness and heal... | <urn:uuid:6ee3ad16-fe67-47e1-b25b-f2f9101d87a0> | 4.0625 | 465 | Truncated | Science & Tech. | 32.734375 | 4,223 |
(diff) ←Older revision | Current revision | Newer revision→ (diff)
Dragon Breed Data
Origin Of Name?
There are several Australian butterflies with "Xenica" in their common names from the parent genera Geitoneura, Oreixenica, and Nesoxenica. The first named variety was the Ringed Xenica in 1805, with marbled orange/blac... | <urn:uuid:42c80edc-ca34-4282-85c2-0ebea99f1d2b> | 2.9375 | 130 | Knowledge Article | Science & Tech. | 24.325333 | 4,224 |
News Item Detail Page
Curiosity Rover Lands Safely on Mars
Aug 04, 2012
Curiosity touched down at Gale Crater Sunday night, August 5, 2012. As the drama of the landing unfolded, each step proceeded without flaw. The capsule entered the atmosphere at the appointed time, with thrusters guiding it toward the crater. The p... | <urn:uuid:485ee16c-eba1-4795-9e55-21e1357c45cd> | 3.765625 | 233 | News Article | Science & Tech. | 41.880315 | 4,225 |
Data reported by the weather station: 543420 (ZYYY)
Latitude: 41.76 | Longitude: 123.43 | Altitude: 43
|Main||Year 1987 climate||Select a month|
To calculate annual averages, we analyzed data of 365 days (100% of year).
If in the average or annual total of some data is missing information of 10 or more days, this is no... | <urn:uuid:fa00e27a-12aa-4787-b2cb-b3f40d58007c> | 2.65625 | 359 | Structured Data | Science & Tech. | 72.851493 | 4,226 |
Wed December 26, 2012
Scientists Seek To Develop Less Toxic Dispersant
Scientists at LSU, Columbia and Iowa State University have teamed up to develop a more environmentally-friendly oil dispersant.
The project is rooted in BP’s response to the 2010 Gulf of Mexico oil spill and addresses surfactants, which are chemical... | <urn:uuid:473b5cb8-88cc-46f4-af73-7be2593ed280> | 2.71875 | 295 | News Article | Science & Tech. | 43.7495 | 4,227 |
Coenzyme A (CoA, CoASH, or HSCoA) is adapted from pantothenic acid and adenosine triphosphate and used in metabolism in areas such as fatty acid oxidization and the citric acid cycle. Its main function is to carry acyl groups such as acetyl as thioesters. A molecule of coenzyme A carrying an acetyl group is also referr... | <urn:uuid:3a991bd4-9e18-4a05-b1c5-07368a2bd44a> | 3.515625 | 397 | Knowledge Article | Science & Tech. | 14.502572 | 4,228 |
- Our Mission
- Our History
- Our Research/Who We Are
- Our Name
- Andrew Carnegie's 23 Organizations
- Accomplishments and Awards
- Board of Trustees
- Financial Statements/Annual Report
- 990 Tax Return
- Travel Directions
- Washington DC Information
- Contact Us
- Events & Venues
- Supporting Carnegie
- Message from... | <urn:uuid:84b4a45c-a031-419a-a897-e9fb8280bc2b> | 2.921875 | 1,196 | News (Org.) | Science & Tech. | 12.199002 | 4,229 |
Are humans the only animals that keep livestock?
If the best guess of biologists proves toe be true, the answer is a surprising ‘no.’ We already know that ants practice a primitive form of agriculture - collecting leaf fragments to grow tasty fungus - and even cultivate aphids in order to ‘milk’ them of their honeydew,... | <urn:uuid:2434062e-7daf-4ff6-a35c-19c60d2fa609> | 3.140625 | 223 | Personal Blog | Science & Tech. | 36.991241 | 4,230 |
A video from Brookhaven Lab explains why the Relativistic Heavy Ion Collider, or RHIC, is producing temperatures up to 4 trillion degrees Celsius.
What's hotter than Justin Bieber and Emma Stone put together? Guinness World Records says the hottest stuff made by humans is the multitrillion-degree quark-gluon plasma tha... | <urn:uuid:eb8f7181-937a-4f24-98e1-9d6b86eeeb19> | 2.796875 | 806 | News Article | Science & Tech. | 51.998407 | 4,231 |
Okay, here goes.
I theorize that black holes may just be a naturally occurring form of Bose-Einstein Condensation.
Background on BEC:
All states of matter thus discovered are all found naturally occurring, so it stands to reason the B.E.C. will also be naturally occurring somewhere.
Bose-Einstein Condensation is a stat... | <urn:uuid:8a6dd7d1-2ec0-47d3-9dac-040a146c0924> | 2.671875 | 1,492 | Comment Section | Science & Tech. | 61.062194 | 4,232 |
The Shuttle Columbia (STS 107) carried
the Shuttle Ozone Limb Sounding Experiment-2 (SOLSE-2) as a
demonstration of new technology that will be used on the next generation
of meteorological satellites to monitor ozone change. Current
instruments flying on NOAA and NASA satellites look directly downward
toward the Earth... | <urn:uuid:fe604dd3-8d90-4d2d-bd21-a94e9d65bd99> | 3.921875 | 1,080 | Knowledge Article | Science & Tech. | 38.093215 | 4,233 |
C# String Theory—String intern pool
|Visual C# Tutorials|
String intern pool
The string intern pool is a table that contains a single reference to each unique literal string declared or created programmatically in your application. The Common Language Runtime (CLR) uses the intern pool to minimize string storage requir... | <urn:uuid:4626dbfd-8284-45cb-aff4-fb72a20610ba> | 3.046875 | 498 | Documentation | Software Dev. | 39.009361 | 4,234 |
Photograph by Gabi Moisa/Shutterstock
Washing machines are second only to toilets as the largest water users in the home, accounting for 14 percent of household water use. Household water consumption has a significant impact on aquatic life, especially when water supplies come from freshwater lakes and streams. The Rio... | <urn:uuid:ec5c6bfa-b3b8-4e35-bcb6-0f3b23a5f8c7> | 3.078125 | 548 | Knowledge Article | Science & Tech. | 39.44566 | 4,235 |
When the debugger is entered, it displays the previously selected buffer in one window and a buffer named ‘*Backtrace*’ in another window. The backtrace buffer contains one line for each level of Lisp function execution currently going on. At the beginning of this buffer is a message describing the reason that the debu... | <urn:uuid:32df05f2-ddfc-4b78-a4e8-7d7e0feb4c39> | 2.96875 | 422 | Documentation | Software Dev. | 41.675595 | 4,236 |
Seed7 is a general purpose programming language. It is a higher level language compared to Ada, C++, and Java. In Seed7, new statements and operators can be declared easily. Functions with type results and type parameters are more elegant than a template or generics concept. Object orientation is used when it brings ad... | <urn:uuid:51c382d9-b6b5-447b-87bd-eb1a30c29ab2> | 3.015625 | 942 | Content Listing | Software Dev. | 19.504591 | 4,237 |
Researchers at the University of Waterloo in Ontario, seemingly oblivious to the fact that technology is exponentially outpacing our ability to keep up with it, have created a new breed of levitating micro-machines.
Worse still, these malignant Micro Machines are armed with tiny pincers that open and close when they ar... | <urn:uuid:173d5e2d-36f8-4f30-9d9c-174c882471c4> | 2.953125 | 216 | News Article | Science & Tech. | 27.463333 | 4,238 |
Bending the Light fantastic
Lasers make a bright beam of light. Shine the beam through a large page-magnifier fesnel lens to show how the lens bends light to create images.
A small low power laser such as a laser pointer.
A page magnifier fresnel lens
cardboard with a white side to use as a screen
steel support, such a... | <urn:uuid:bf1f5433-dc6e-4080-96cc-12286e6ec445> | 4.0625 | 1,040 | Tutorial | Science & Tech. | 67.420365 | 4,239 |
Miconia is one of the most destructive invaders in insular tropical rain forest habitats. It is a serious threat to ecosystems in the Pacific because of its ability to invade intact native forests. Miconia has earned itself the descriptions such as the “green cancer” of Tahiti and the “purple plague” of Hawaii. Once mi... | <urn:uuid:a65dc8cb-b7d0-4555-8fd0-2fca37c11bbb> | 3.921875 | 686 | Knowledge Article | Science & Tech. | 23.991178 | 4,240 |
NASA In Deep Water
To the uninitiated, it’s not immediately obvious why NASA would be sponsoring an expedition into the deepest known sinkhole on Earth. On the other hand, the involvement of Environmental Science and Engineering Professor John Spear is a little more apparent—he’s a microbiologist and in this more than ... | <urn:uuid:bf8e6725-a1fc-4599-b608-42f3e65a7227> | 3.546875 | 1,542 | Content Listing | Science & Tech. | 22.598386 | 4,241 |
Core Temperature of Sun
How do scientist know the sun's core temperature?
This is a good question, after all, we have no direct access to the sun's
core, but if we apply some knowledge of physics, we can get to a reasonable
approximation quite readily.
First, we have to understand that the sun is mostly gas-like partic... | <urn:uuid:8de2ad13-db9e-4c77-8420-3bb72129700e> | 3.71875 | 457 | Knowledge Article | Science & Tech. | 62.912994 | 4,242 |
Terms such as ‘red tide’ and ‘global warming’ are catchy but lead to misconceptions.
Words matter. Take the term “red tide,” which is the popularized way of talking about blooms of harmful marine algae. This common terminology is a misnomer because the blooms are not always red and their movement is largely unrelated t... | <urn:uuid:3a073533-60c1-40f7-8e62-b2f76510fb1c> | 3.265625 | 453 | Personal Blog | Science & Tech. | 46.481513 | 4,243 |
Scientific knowledge is an enabling power to do either good or bad - but it does not carry instructions on how to use it.
- Richard Feynman
Bioethics is the study of ethical questions and problems within the field of biology. Bioethical questions may concern the entire planet(What amount of change to the biosphere of t... | <urn:uuid:47d46b1d-7054-4690-a71a-2bc8ef51bfff> | 3.09375 | 1,513 | Knowledge Article | Science & Tech. | 25.629397 | 4,244 |
Text::Levenshtein - An implementation of the Levenshtein edit distance
use Text::Levenshtein qw(distance);
# prints "2"
# prints "2 0 3"
This module implements the Levenshtein edit distance.
The Levenshtein edit distance is a measure of the degree of proximity between two strings.
This distance is the number of substit... | <urn:uuid:fb108f41-f313-40dd-8e98-96a812b06b7f> | 2.546875 | 292 | Documentation | Software Dev. | 56.255496 | 4,245 |
(PhysOrg.com) -- On March 17, the tiny MESSENGER spacecraft completed its primary mission to orbit and observe the planet Mercury for one Earth-year. The bounty of surprises from the mission has completely altered our understanding of the solar system's innermost planet. As reported in one of two papers published today... | <urn:uuid:55bad6a9-ac02-4270-a5ee-f23b43588031> | 3.84375 | 902 | News Article | Science & Tech. | 27.010837 | 4,246 |
One boring Monday morning in the lab a group of us did the experiment, and to our surprise we found that the hot water (in sealed containers) did freeze faster.
On closer examination we discovered that the shelves in our freezer were covered in frost, like I imagine most freezers, and the hot water was melting the fros... | <urn:uuid:93796662-37d4-4b1e-926d-9a102bb9e035> | 2.75 | 193 | Q&A Forum | Science & Tech. | 50.44 | 4,247 |
Stretched molecule puts a new spin on electrons
Jun 15, 2010 2 comments
Physicists in the US have invented a way of measuring the magnetic properties of a single molecule as it is being stretched. The technique provides a new approach for studying quantum chemistry and how the spin of an electron affects its passage th... | <urn:uuid:8fa83804-6215-4c7f-8bda-8eea4c9acf6a> | 3.59375 | 1,039 | News Article | Science & Tech. | 39.435679 | 4,248 |
|pygame.mask.from_surface||—||Returns a Mask from the given surface.|
|pygame.mask.from_threshold||—||Creates a mask by thresholding Surfaces|
|pygame.mask.Mask||—||pygame object for representing 2d bitmasks|
Useful for fast pixel perfect collision detection. A Mask uses 1bit per pixel to store which parts collide.
New... | <urn:uuid:d1d1303c-a2fe-4d2d-89a4-dd486bb5ff17> | 2.875 | 1,432 | Documentation | Software Dev. | 67.36576 | 4,249 |
- The first article covers elementary school teachers and the crisis in STEM education:
Prospective teachers can typically obtain a license to teach elementary school without taking a rigorous college-level STEM class such as calculus, statistics, or chemistry, and without demonstrating a solid grasp of mathematics kno... | <urn:uuid:9bc500c9-a7a8-4629-bd37-4c3efd2f6e92> | 3.1875 | 339 | Personal Blog | Science & Tech. | 4.919963 | 4,250 |
Another article on babirusas – yaay! Like many (but not all) pigs, babirusas are omnivorous, and are said to eat invertebrates whenever they find them. They have also been reported to eat fish on occasion, to catch small mammals, and even to catch and eat the juveniles of other babirusas (Leus & Morgan 1995). They eat ... | <urn:uuid:b5d36b74-9cc0-4c84-9030-a3d3449a9bf0> | 2.921875 | 1,378 | Personal Blog | Science & Tech. | 48.60603 | 4,251 |
Have you ever wondered why all mammals have a tail, but man does not?
All species of animals, including man, of course, have evolved very gradually over millions of years. In this way, each animal strengthens and improves those parts of its body that are particularly useful, and the various parts that are not so useful... | <urn:uuid:2c03b666-e138-4115-816c-b848976930df> | 3.734375 | 281 | Personal Blog | Science & Tech. | 60.886473 | 4,252 |
Randall Irmis, curator of paleontology at the Natural History Museum of Utah and assistant professor at the University of Utah, is investigating the rise of dinosaurs in southeastern Utah.
Friday, Sept. 7
It is often said that geological and paleontological investigations are like trying to put together a puzzle with m... | <urn:uuid:e08ad396-f110-4397-83b8-39926b5e3c46> | 3.828125 | 625 | News Article | Science & Tech. | 36.987018 | 4,253 |
August 26, 2004
If terrorists or a rogue nation wanted to get their hands on some bomb-grade uranium-235, one source would be the research reactor at the University of Wisconsin or five other universities (Oregon State, Washington State, Purdue, Texas A&M and the University of Florida) operating small reactors running ... | <urn:uuid:172a4e6d-81cd-47c9-8a5e-a27268e133f4> | 3.09375 | 473 | News Article | Science & Tech. | 39.525369 | 4,254 |
Florida Bay Inner Basin Transport Studies -
In response to the Announcement of Funding Opportunity by the CSCOR/COP South Florida Ecosystem Restoration Prediction and Modeling Program (SFP) we conducted a two year study of the circulation and exchange processes that regulate the residence times and flushing rates withi... | <urn:uuid:16c7f90a-cbd5-40bc-95e8-da7ae3af01db> | 2.8125 | 502 | Knowledge Article | Science & Tech. | 17.636085 | 4,255 |
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SNOWMASS VILLAGE, Colo., July 6 By observing millions of subatomic particles called B mesons, a team of scientists working at the Stanford Linear Accelerator Center in California has found ne... | <urn:uuid:baadb5b2-6bdb-4ae6-ac5b-5972dd1a3cbe> | 3.34375 | 925 | News (Org.) | Science & Tech. | 37.430531 | 4,256 |
What if you were given a new Hubble telescope for free? How about two?
The astronomical community is
abuzz with just this opportunity as the US
National Reconnaissance Office
has unexpectedly transferred ownership of two space-qualified
Hubble-quality telescopes to NASA.
The usefulness of
these telescopes in addressing... | <urn:uuid:f887de4a-0161-45c3-b0bc-332ed4709e6d> | 2.90625 | 189 | Truncated | Science & Tech. | 14.035775 | 4,257 |
An initial report on the 24-hour count that began midnight Monday and ended midnight Tuesday included 233 different species — a drop of 11 from last year when 244 were counted on Mad Island. While the area likely still has one of the United States' most diverse bird populations, the species that were missing raise ques... | <urn:uuid:7c35fe75-b7ce-4892-8c81-315a0bb0ae6b> | 3.203125 | 144 | Comment Section | Science & Tech. | 50.941923 | 4,258 |
16. April 2008: Methane sources over the last 30,000 years – New insights into natural changes in atmospheric methane concentrations
Ice cores are essential for climate research, because they represent the only archive which allows direct measurements of atmospheric composition and greenhouse gas concentrations in the ... | <urn:uuid:abee6f21-09fd-4f42-b8f1-139c08546ba6> | 3.3125 | 1,202 | News (Org.) | Science & Tech. | 27.299193 | 4,259 |
seed germination and fertilizer
bae at oci.utoronto.ca
Wed Feb 1 18:07:08 EST 1995
In article <3gm9hv$777 at newsbf02.news.aol.com> cheesenips at aol.com (CheeseNips) writes:
>hello! I am trying to help a student determine if there is any
>difference in seed germination when fertilizer is used. If anyone can
>help, it ... | <urn:uuid:5642edd6-9926-46cc-b0c8-ff54ef19962e> | 3.0625 | 230 | Comment Section | Science & Tech. | 54.995113 | 4,260 |
this is my investigation processed so far.could anyone pro have a look at my investigation to see if anything needs improving?
titile page: the effect of light intensity on the distribution of helice crassa.
Introduction: the ecological niche of Helice crassa: Helice crassa belongs to biological class Malacostraca(1). ... | <urn:uuid:b5ff9517-c41c-4c1e-a5fb-dc5d38267790> | 3.046875 | 1,131 | Comment Section | Science & Tech. | 48.718809 | 4,261 |
Orbital Coordinate Systems, Part I
By Dr. T.S. Kelso
By this point, I hope to have helped you develop an understanding of two key aspects of practical orbital mechanics. The first has to do with why we use the orbital models we do for predicting the position of earth-orbiting artificial satellites. As with any computer... | <urn:uuid:b3149fa5-1e55-46f9-9cc7-ae6e11d4992f> | 3.796875 | 2,951 | Personal Blog | Science & Tech. | 45.018836 | 4,262 |
Common loons defend breeding territories on fresh water lakes in the northern US and Canada. While a great deal is known in general about their breeding biology it was the advent of banding that enabled identification of individual loons.
Cornell professor of neurobiology and behavior Charles Walcott and colleagues Wal... | <urn:uuid:a321549f-fb8c-49ef-8cf2-fae1ce3d3c65> | 3.5625 | 200 | Truncated | Science & Tech. | 42.002143 | 4,263 |
New Native Languages, May 08, 2012 D, Go, Vala, and Rust: A new generation of native languages.
D is the brain-child of Dr. Dobb's blogger Walter Bright. Like all the other languages discussed here, it's fundamentally an OO language with numerous features that push it into different areas of programming. Originally con... | <urn:uuid:ee6563a7-d89c-4f97-8c65-cc5026c115ec> | 2.859375 | 185 | Personal Blog | Software Dev. | 32.438647 | 4,264 |
Electromagnetic radiation is a combination of oscillating electric and magnetic fields propagating through space and carrying energy from one place to another. Light is a form of electromagnetic radiation. The theoretical study of electromagnetic radiation is called electrodynamics, a subfield of electromagnetism.
Any ... | <urn:uuid:bf0af722-50ea-48a9-b02d-58a0d49fce3a> | 4.09375 | 462 | Knowledge Article | Science & Tech. | 29.595229 | 4,265 |
Algae are essential components of marine and freshwater habitats in and around Australia. The play a critical role in nutrient cycling, as food and shelter for invertebrates and fish, and some have considerable potential as biological indicators of the health of aquatic habitats. At least 12 000 marine, freshwater and ... | <urn:uuid:a8f42212-d18a-48e1-8270-05b31df655cd> | 3.046875 | 378 | Knowledge Article | Science & Tech. | 8.011324 | 4,266 |
Contact: Rob Gutro
NASA/Goddard Space Flight Center
Caption: TRMM rainfall totals are shown here from Nov. 28 to Dec. 5, 2012 when typhoon Bopha was moving through the southern Philippines. Typhoon Bopha's track is shown overlaid in white. The heaviest rain, estimated at over 240 mm(~9.4 inches), was located near the c... | <urn:uuid:59720538-bd52-45bd-9a72-458b8b642361> | 2.53125 | 157 | Truncated | Science & Tech. | 61.045769 | 4,267 |
Photometric Units of Measurement
The intensity of electric lights is commonly given as so many candlepower, i.e., so many times the intensity of a standard candle. Since an ordinary candle is not a sufficiently accurate standard, the unit of intensity has been defined in various ways. It was originally defined as the l... | <urn:uuid:3bff0d38-2910-40a5-97bf-80f43bd50e7d> | 3.984375 | 421 | Knowledge Article | Science & Tech. | 33.396457 | 4,268 |
I need to isolate a word that starts with a hashtag (#) from a string of user input. For example if the user enters "Hi how #are you today" i need the program to print out "#are".
My thought process was to try to isolate the substring from the index of the # to the next space, but I do not know how to get it to recogni... | <urn:uuid:aaad3684-95c4-406b-8ef1-dbcb44650452> | 2.625 | 188 | Comment Section | Software Dev. | 74.789286 | 4,269 |
||Topex was JPL's follow-on to the Seasat-A mission of 1978. Unlike Seasat, Topex had just one scientific instrument, a radar altimeter designed to measure sea surface height. Surface height is directly related to temperature, tides and currents, all of which are important to oceanographers and meteorologists. But in t... | <urn:uuid:79ae505e-6e77-4a01-8e62-5e2a944f0424> | 3.40625 | 332 | Knowledge Article | Science & Tech. | 41.465854 | 4,270 |
Space history was made on February 12, 2001 when NASA's NEAR spacecraft became the first craft to land on an asteroid. What makes this landing even more exceptional is that NEAR, managed by the Applied Physics Lab at Johns Hopkins University, was not built to withstand a landing; its mission was to orbit asteroid Eros ... | <urn:uuid:00bf9a63-85b1-4f8e-bfc8-a56898e19be1> | 3.484375 | 1,015 | Audio Transcript | Science & Tech. | 63.665302 | 4,271 |
will calculate simple statistical measures between two minc
files or more by comparing all subsequent files to the first.
The results for each subseqent file are then returned in order.
By default all statistics are calculated. If specifitc statistics
are requested via a command-line option, then only the requested
sta... | <urn:uuid:fa75a467-5dc0-4da7-9882-8c3c977122b1> | 2.734375 | 521 | Documentation | Software Dev. | 49.453856 | 4,272 |
Present climate is determined from analysis of meteorological observations. Climates of the past may be deduced by studying proxy data such as ice-cores, tree-rings, pollen, etc. Future climate changes may be estimated by means of computer simulations using programs known as General Circulation Models or Climate Models... | <urn:uuid:8956a4ec-f79d-40f5-8f76-428843b0fd38> | 3.90625 | 1,289 | Academic Writing | Science & Tech. | 27.726165 | 4,273 |
8 images of impact craters in space
Tue, Nov 06 2012 at 7:05 PM
An estimated half million asteroids are flying around our solar system, ranging from the size of baby planets to particles of dust. With so many objects winging about in space, it’s no wonder that the planets and moons of our solar system are pitted with c... | <urn:uuid:52808130-3417-4ac4-b62f-a8edd7961b80> | 2.8125 | 98 | Truncated | Science & Tech. | 51.159959 | 4,274 |
What are the special conditions necessary for fossils to form? Usually, if something dies, it either rots away from bacteria and fungus, or is eaten by animals. (Scavengers are animals that live off of dead flesh.) So, a major factor in forming a fossil is rapid burial. This protects the organism from being eaten or ex... | <urn:uuid:2a44f2b9-99f9-4f3c-9b92-395168421927> | 3.578125 | 71 | Knowledge Article | Science & Tech. | 52.116172 | 4,275 |
In JSF, you send and display dynamic data by binding UI components or component tag attribute values to data in the model layer. This data can be held in any JavaBean within the application. However by registering the bean as a managed bean, at runtime the JSF application automatically instantiates the bean on demand, ... | <urn:uuid:8cc7b575-9156-43d8-8738-3f3f133015ae> | 2.65625 | 229 | Documentation | Software Dev. | 45.798885 | 4,276 |
Microwaves can transform a frozen pizza into hot, melted goodness in four minutes flat, but they can’t rescue your melted ice-cream sundae. To cook food, a microwave oven converts voltage into high-frequency electromagnetic microwaves. The molecules in food—especially water and fat—absorb this energy and wiggle at high... | <urn:uuid:97f14344-cd33-4910-a6d4-6fae2b421ad4> | 3.3125 | 356 | News Article | Science & Tech. | 44.468095 | 4,277 |
distribution occur when different organisms able to withstand different
degrees of stress are found living in areas along the shore that
suit their particular needs.
The upper limit
of an organism's distribution on the shore depends largely on its
degree of tolerance of the physical environment. However, the lower
limi... | <urn:uuid:42660f16-1c1d-42df-b534-aa2399ae0a8e> | 3.234375 | 106 | Knowledge Article | Science & Tech. | 16.06625 | 4,278 |
what is the difference between authentication and authorization
Authentication is the process of obtaining identification credentials such as name and password from a user and validating those credentials against some authority. If the credentials are valid, the entity that submitted the credentials is considered an au... | <urn:uuid:2eeb00ca-1f93-40fa-97b7-3294280309a1> | 3.1875 | 139 | Q&A Forum | Software Dev. | 11.098484 | 4,279 |
Mar. 13, 2000 A newfound microbe that eats iron and lives in acid-drenched conditions has been identified as a chief suspect in the environmental damage caused by metal ore mining.
Writing in the Friday, March 10, edition of the journal Science, a team of university scientists report the discovery in an old mine of an ... | <urn:uuid:f1a67ab0-02a0-4316-9534-a6902375e1e1> | 3.734375 | 1,059 | News Article | Science & Tech. | 34.467179 | 4,280 |
SCons duplicates source files in variant directory trees because it's the most straightforward way to guarantee a correct build regardless of include-file directory paths, relative references between files, or tool support for putting files in different locations, and the SCons philosophy is to, by default, guarantee a... | <urn:uuid:07c92f50-65f8-4f07-9d23-6db7c167c4da> | 2.796875 | 352 | Documentation | Software Dev. | 19.158149 | 4,281 |
Created by Roger Edwards, Storm Prediction Center
In this enhanced water vapor image, color progressions from gray thru bright blue to deep blue indicated more moisture; while black through deep red means drying. Often, areas of strong drying correspond to sinking motion in the upper levels; and areas of high moisture ... | <urn:uuid:1dcbab73-2697-401f-81a5-1d0673c3d3e5> | 3.515625 | 284 | Knowledge Article | Science & Tech. | 39.428796 | 4,282 |
This is an artist's conception of the Earth and its radiation belts.
Click on image for full size
The Discovery of the Radiation Belts
The belts of trapped radiation above the Earth's atmosphere, but within the magnetosphere, were first detected by James Van Allen in 1958. Therefore these belts are also known as Van Al... | <urn:uuid:dad4115f-f145-485e-bc43-50bb55dcd546> | 3.96875 | 646 | Knowledge Article | Science & Tech. | 56.495948 | 4,283 |
We’ve seen a lot of concepts cross the realm of SciFi into reality, however transferring fabrics of imagination to practical applications which respect the laws of physics can be troublesome, if not sometimes impossible. If in a book or TV show, like Star Trek for instance, things like teleportation, time travel or fas... | <urn:uuid:2c1209ea-dc1a-4c2b-adf3-77b3f8b47e16> | 3.53125 | 1,161 | Nonfiction Writing | Science & Tech. | 46.533874 | 4,284 |
NOTE: Click on the images to view them at their highest resolution.
This is a six image sequence showing the collision of fragment H of Comet Shoemaker-Levy 9 with Jupiter. The frames were taken over a three hour period on the 18th of July, 1994, using the MAGIC infrared camera on the 3.5 meter telescope on Calar Alto.... | <urn:uuid:a3b7f02e-144c-4116-b719-56512800ef6d> | 3.046875 | 640 | Knowledge Article | Science & Tech. | 48.272293 | 4,285 |
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Coffee pollination in fragmented tropical landscapes: conservation of an important ecosystem service.
Ricketts, Taylor*,1, 1 Stanford University, Stanford, CA
ABSTRACT- Ecosystem services support human life and thus provide a powerful scientific and economic basis for informin... | <urn:uuid:f9d15dd5-973b-47fc-8bf0-e4dcbc6ab890> | 2.84375 | 281 | Academic Writing | Science & Tech. | 8.352643 | 4,286 |
The shape of a real ponytail at various lengths is given by “a”. Calculated shapes by “b” and “c”, where “c” includes a term for frizziness. (Courtesy: American Physical Society)
By Hamish Johnston
Here is some research that is truly on the fringe – or a “big bangs theory” for our readers in North America.
Physicists i... | <urn:uuid:e5c49c82-1f0e-41b2-9a58-3d7f0786813c> | 3.21875 | 437 | News Article | Science & Tech. | 42.185731 | 4,287 |
Posted by Mike Gualtieri on February 20, 2010
The NoSQL Movement Is Gaining Momentum, But What The Heck Is It?
The NoSQL movement is a combination of an architectural approach for storing data and software products (such as Tokyo Cabinet, CouchDb, Redis) that can store data without using SQL. Thus the term NoSQL.
The i... | <urn:uuid:c7b85427-0570-4535-8f3d-236b1a9f0e06> | 2.609375 | 1,666 | Personal Blog | Software Dev. | 45.611424 | 4,288 |
Cygnus X is a star forming region in the constellation Cygnus in the night sky. It looks rather pretty in visible light, as shown at the beginning of the video below. But in radio, infrared and gamma ray wavelengths, Cygnus X really comes to life.
Recent Fermi Large Area Telescope (LAT) observations have shown that cav... | <urn:uuid:db89fce8-8be6-44fa-82e4-b007b6c55c0a> | 4.09375 | 747 | Knowledge Article | Science & Tech. | 57.993929 | 4,289 |
Climate change contributes to wildfires, makes them hard to fight, scientists say
Leading climate-change scientists say the chances of humans stopping the wildfires raging across Colorado aren't good.
Fire in Boulder.
"These wildfires, when they become wind-driven, are like a nuclear bomb going off, and humans are not ... | <urn:uuid:3a292a9e-f8d9-4fc5-9c36-a126b5f89bcf> | 3.1875 | 639 | News Article | Science & Tech. | 45.71632 | 4,290 |
In the 1970’s/1980’s some humans decided to introduce Blue Catfish into three Virginia Rivers in the Chesapeake Bay region. The bright idea: start a new recreational fishery. The Blue Catfish is a very large [100 lb.] freshwater creature native to the Mississippi, Missouri, and Ohio rivers. The bright idea–like many ot... | <urn:uuid:7903b2c7-aefb-4b05-8d32-c27e0f90f4f5> | 2.65625 | 82 | Personal Blog | Science & Tech. | 51.60282 | 4,291 |
Sun’s output diminishes: NASA
NASA’s spacecraft Ulysses has a polar orbit around the Sun, and is monitoring its output of cosmic rays. The rays appear to have fallen off recently. Combine that with the lack of sunspots this year (which is pretty odd in itself) and you have to get a little worried. Why? Because our clim... | <urn:uuid:9fb5d5fd-b03c-44a4-b47c-91d6dc97fcec> | 3.125 | 524 | News Article | Science & Tech. | 48.926434 | 4,292 |
Of all of the world's chemical compounds, none has a worse reputation than carbon dioxide. Thanks to the single-minded demonization of this natural and essential atmospheric gas by advocates of government control of energy production, the conventional wisdom about carbon dioxide is that it is a dangerous pollutant. Tha... | <urn:uuid:afbb882b-b3f4-4972-8aab-f3b49e6e6ab7> | 3.921875 | 1,165 | Truncated | Science & Tech. | 33.947468 | 4,293 |
- About Us
Potential Effects of a Forest Management Plan on Bachman's Sparrows (Aimophila aestivalis): Linking a Spatially Explicit Model with GIS
Journal or Book Title: Conservation Biology
Page Number(s): 62-79
Year Published: 1995
By combining a spatially explicig individual-based population simulation model with a ... | <urn:uuid:c6a9f24f-a979-40cd-b2a8-a22d1ca5ee0a> | 2.890625 | 423 | Academic Writing | Science & Tech. | 8.370993 | 4,294 |
Date of this Version
Methionine residues in proteins can be readily oxidized to a diastereomeric mixture of methionine sulfoxides by reactive oxygen species. In most organisms, methionine sulfoxides are reversibly and stereospecifically reduced back to methionine by two distinct classes of repair enzymes, methionine-S-... | <urn:uuid:481044e7-6c0f-4ece-a53b-ef9c1c5dd1e8> | 3.203125 | 287 | Knowledge Article | Science & Tech. | 13.216524 | 4,295 |
Petford, N. and Koenders, M.A., 2001. Consolidation phenomena in sheared granitic magma: effects of grain size and tortuosity. Physics and Chemistry of the Earth, Part A: Solid Earth and Geodesy, 26 (4-5), pp. 281-286.
Full text not available from this repository.
Official URL: http://www.sciencedirect.com/science?_ob=... | <urn:uuid:4b73956b-9978-4a56-8a95-f19e6f71657f> | 2.8125 | 418 | Academic Writing | Science & Tech. | 48.085 | 4,296 |
Many news sites have played up the idea that NASA scientists have made objects similar to cell membranes. As one site says, "They have succeeded in creating cell-like structures spontaneously from simple chemical ices in conditions that simulate the frigid vacuum of deep space."1 Is this claim really true? Let's look a... | <urn:uuid:a602433f-c919-4601-8105-0598a32800cf> | 3.65625 | 2,015 | Knowledge Article | Science & Tech. | 35.612042 | 4,297 |
The death rate of many of the biggest and oldest trees around the world is increasing rapidly, scientists report in a new study in Friday’s issue of the journal Science. They warned that research to understand and stem the loss of the trees is urgently needed.
“It’s a worldwide problem and appears to be happening in mo... | <urn:uuid:68c84b97-cf49-4cfa-ac2a-28f93ef33b08> | 3.921875 | 929 | News Article | Science & Tech. | 49.535316 | 4,298 |
|d18O is a proxy for precipitation and is correlated to changes over the past 3,100 years in solar activity [shown by the d14C proxy]|
Abstract: Paleorecords are key for evaluating the long-term patterns and controls of drought. We analyzed calcite in annually laminated sediments from a Minnesota lake for oxygen-isotop... | <urn:uuid:4312f5c4-a1af-48f7-bc85-e8938d6a3e25> | 2.78125 | 276 | Academic Writing | Science & Tech. | 24.10619 | 4,299 |