text stringlengths 174 655k | id stringlengths 47 47 | score float64 2.52 5.25 | tokens int64 39 148k | format stringclasses 24
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<programming> A program which executes other programs. This is in contrast to a compiler which does not execute its input program (the "source code") but translates it into executable "machine code" (also called "object code") which is output to a file for later execution. It may be possible to execute the same source ... | <urn:uuid:91fc9fc8-2bc4-4d08-a6cc-63ae157659bf> | 3.890625 | 552 | Knowledge Article | Software Dev. | 23.794982 | 2,700 |
Specifies the type of key container access allowed.
This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.Namespace: System.Security.Permissions
Assembly: mscorlib (in mscorlib.dll)
|No access to a key container.|
|Create a key container.|
Creating a key container also c... | <urn:uuid:5390c993-1c08-4e6d-9528-3bf3c96ed60e> | 2.921875 | 609 | Documentation | Software Dev. | 47.574495 | 2,701 |
This week a team of scientists and technicians from the Carnegie Institution of Washington and the UNAVCO consortium are visiting MVO as part of their work for the Caribbean Andesitic Lava Island Precision Seismo-geodetic Observatory (CALIPSO) project. Funded by the National Science Foundation since 2002, CALIPSO adds ... | <urn:uuid:87d2db08-aa3b-4ff7-96ba-f9307a036739> | 2.71875 | 313 | News (Org.) | Science & Tech. | 25.551976 | 2,702 |
The Chemistry and Camera (ChemCam) instrument on the rover Curiosity can hit rocks with a laser powerful enough to excite a pinhead-size spot into a glowing, ionized gas. ChemCam then observes the flash through a telescope and analyzes the spectrum of light to identify the chemical elements in the target.
That informat... | <urn:uuid:16eaf9a7-9096-41cb-a732-af77221cf3a6> | 4.4375 | 1,692 | Knowledge Article | Science & Tech. | 38.584507 | 2,703 |
Tag: "fossils" at biology news
New process by Temple grad student can place loose fossils back into the strata or determine fakes
...tists have a new tool to aid them in placing loose fossils
back into the earths strata or determining the fossils
legitimacy. Paleontologists need to know where a fossil goes in the strat... | <urn:uuid:165a25c4-a544-413d-9bd9-98348dc40d8a> | 2.6875 | 1,537 | Content Listing | Science & Tech. | 52.194999 | 2,704 |
Water and Solution Evaporation Rates
Date: Winter 2011-2012
After researching many sites including yours, my son attempted an experiment to determine what would evaporate quicker: tap water, bottled purified water, or a homemade solution of salt water. All of the research dictated that the tap water should evaporate fi... | <urn:uuid:ad2acc8b-ffa9-497c-bfa0-02775df4b7b9> | 3.234375 | 2,223 | Q&A Forum | Science & Tech. | 58.184403 | 2,705 |
Can you each work out the number on your card? What do you notice?
How could you sort the cards?
I am thinking of three sets of numbers less than 101. They are the
red set, the green set and the blue set. Can you find all the
numbers in the sets from these clues?
If you have ten counters numbered 1 to 10, how many can ... | <urn:uuid:874fa1a7-2528-4120-a755-2c8abe351e22> | 3.75 | 758 | Content Listing | Science & Tech. | 70.299195 | 2,706 |
Filmy bags of fluid that crawl, extend finger-like protrusions, and engulf smaller objects–living cells exploit engineering principles that physicists would love to understand. But at 10 to 100 µm in size, they’re tough to get a handle on. Now a team in France has demonstrated how to deduce the material properties of c... | <urn:uuid:68dff42f-20d3-427f-a834-73651dcd1d2d> | 3.25 | 803 | News Article | Science & Tech. | 42.36488 | 2,707 |
PyX — Example: bargraphs/minimal.py
Minimal bar-graph example
from pyx import * g = graph.graphxy(width=8, x=graph.axis.bar()) g.plot(graph.data.file("minimal.dat", xname=0, y=2), [graph.style.bar()]) g.writeEPSfile("minimal") g.writePDFfile("minimal")
For a minimal bar plot you have set an bar axis in the graph constr... | <urn:uuid:d21b0497-da11-4f90-9df9-e48e88c24024> | 2.828125 | 453 | Documentation | Software Dev. | 57.84167 | 2,708 |
Eric Agol from the University of Washington makes a strong case.
(PhysOrg.com) -- The search for habitable planets similar to Earth has routinely focused around active nuclear burning stars. However, in a recently published paper by Eric Agol from the University of Washington, the idea to expand the search to white dwa... | <urn:uuid:ee52fc6a-0680-497f-bd12-cd2d1b732f15> | 3.25 | 193 | News Article | Science & Tech. | 44.246655 | 2,709 |
To have threading supported at the language level means that the language provides first-class support for multi-threading, as opposed to just providing second-class support via class libraries.
In Java, threading is supported at the language level with the
volatile keywords. Using monitors and volatile fields are rela... | <urn:uuid:30cb8a1f-56f2-4969-9f89-ab4a6e7156a1> | 3.234375 | 328 | Q&A Forum | Software Dev. | 42.25 | 2,710 |
Proposals:Realistic meteor showers
BLURB - TO BE EXPANDED
At the moment, Stellarium can show meteors, but they are simply decorative - they appear at random points at a rate set by the user. The existing code of the MeteorMgr class can be used as a base for a plug-in that shows more or less scientifically accurate mete... | <urn:uuid:6a53d6c0-4070-4b44-8809-6d5bf2cb0042> | 2.59375 | 291 | Knowledge Article | Science & Tech. | 45.48825 | 2,711 |
One of the new technologies introduced with LINQ is called LINQ query expressions. It's also called "syntactic sugar" because it's really just a faster and easier way to write statements that can be written other ways. (Some programmers almost seem to believe that code should be hard to write, not easier. Visual Basic ... | <urn:uuid:5c133348-c13b-40f8-b348-971f40fe1aff> | 2.546875 | 833 | Documentation | Software Dev. | 59.775518 | 2,712 |
The Windows Sockets WSAAsyncGetHostByName function gets host information corresponding to a hostnameasynchronous version.
HANDLE WSAAsyncGetHostByName (
[in] The handle of the window which should receive a message when the
asynchronous request completes.
[in] The message to be received when the asynchronous request com... | <urn:uuid:8ea25c48-932a-4978-a135-38ecd3ee42c7> | 2.609375 | 1,628 | Documentation | Software Dev. | 34.202035 | 2,713 |
The grey-faced sengi is a relative newcomer to the elephant shrew family. The journey of discovery began in 2005, when a unfamilar species of giant elephant shrew was caught on a camera trap in the Udzunga mountains of Tanzania. An expedition the following year confirmed this as the first new elephant shrew species ide... | <urn:uuid:3c4e4cc2-e8b5-4236-a1d0-c307011fd033> | 3.390625 | 402 | Knowledge Article | Science & Tech. | 45.325714 | 2,714 |
Is ligation reaction volume only 10 ul?
Frank O. Fackelmayer
fof1 at chclu.chemie.uni-konstanz.de
Fri Jun 13 07:26:51 EST 1997
In article <01bc77fe$cd0533c0$467df88f at KAISTWF.kaist.ac.kr>, "Yeon Chul
Kim" <e_yckim at cais.kaist.ac.kr> wrote:
> In my knowledge, most people used 10 ul of ligation reaction volume.
> Are... | <urn:uuid:a1539c86-89ba-4117-a635-4e0a6d6cd432> | 2.609375 | 268 | Q&A Forum | Science & Tech. | 68.412054 | 2,715 |
To find the x-intercepts and asymptotes of secant, cosecant, and cotangent, rewrite them in terms of sine and cosine. Notice that since secant and cosecant have 1 in the numerator and a trig function in the denominator, they can never equal zero; they do not have x-intercepts. The vertical asymptotes of the three funct... | <urn:uuid:fdbc4993-9163-4782-85b9-91fb821b9610> | 3.140625 | 569 | Tutorial | Science & Tech. | 45.434219 | 2,716 |
Philipp Boeing on synthetic biology's citizen science.
In Shoreditch, residence to London artists, coffee shops and retro clothes, a group of amateur scientists and UCL students have met to engineer biology. They’re building a bacteria incubator out of a fridge box, cardboard and open source electronics. Their mission?... | <urn:uuid:981d9638-85cc-43de-b5ca-275f36fffcf9> | 3.21875 | 802 | Knowledge Article | Science & Tech. | 22.673918 | 2,717 |
This article describes a simple approach to creating a
custom file type. In the example provided, a custom file type is created around
a serializable class that is used as a data container holding all of the
elements necessary to support an application designed to interact with the
defined file type. A separate module ... | <urn:uuid:9e0790d6-c7d3-4f0a-b9ee-55792f52af36> | 2.515625 | 1,474 | Documentation | Software Dev. | 38.675213 | 2,718 |
Despite the increasing knowledge of amphibians and reptiles in Guyana, the southern part of the country has yet to be explored. Southern Guyana has been noted as a high research priority because it harbors large, contiguous forests, and a high diversity of habitats. The reptiles and amphibians of the Acarai Mountains a... | <urn:uuid:14b23082-e1c2-445c-be6b-bb1262aa9658> | 3.171875 | 895 | Knowledge Article | Science & Tech. | 33.293203 | 2,719 |
This article published by Yongyut Trisurat, Anak Pattanavibool, George A. Gale and David H. Reed in CSIRO Publishing. Wildlife Research. 2010, 37, 401-412, demonstrates how the CAP principles helped assess wildlife population viability for multiple species in the Western Forest Complex in Thailand. If you wish to reque... | <urn:uuid:88f965df-95a7-4e97-bcdf-27d8ec0cad74> | 2.875 | 500 | Academic Writing | Science & Tech. | 19.339288 | 2,720 |
Operating system and language architect Carl Sassenrath has released the next version of the REBOL (Relative Expression Based Object Language). The cross platform language is designed for data exchange and is described as a multi-paradigm dynamic programming language.
Starting out life as a proprietary offering in 1997... | <urn:uuid:54368e50-4307-4b7d-879b-2fc8b6936212> | 2.515625 | 469 | News Article | Software Dev. | 24.253721 | 2,721 |
Pacific Rocky Intertidal Monitoring: Trends and Synthesis
Click here for Long-Term trends
Click here for Biodiversity Survey findings
Paradise Cove is located in the South Coast region of California. The site is located in an Area of Special Biological Significance (Mugu Lagoon to Latigo Point ASBS), within the Point D... | <urn:uuid:3bd9f76e-d711-4e97-b11a-c52049499f75> | 2.828125 | 388 | Knowledge Article | Science & Tech. | 24.779135 | 2,722 |
Each spring in the Arctic, the flooding triggered by melting snow which washes vast amounts of carbon-rich soil from the land into the streams and ocean which is a process called slumping. This may not sound like much. Certainly it is localized erosion, but global warming? That's of particular interest to scientists st... | <urn:uuid:4e2efd2b-a71c-4c56-b929-beafa59ea113> | 4.4375 | 720 | News Article | Science & Tech. | 33.095594 | 2,723 |
Contact: Sonia Furtado
European Molecular Biology Laboratory
Caption: This electron microscopy image shows Gemmata obscuriglobus. This and other PVC bacteria, the EMBL scientists discovered, have membrane-coat proteins associated with the membranes of sub-cellular compartments like the one shown in green, in which vesi... | <urn:uuid:4ae8677c-d60f-4e9c-aeff-1d6d9f6e7782> | 2.703125 | 200 | News (Org.) | Science & Tech. | 22.092628 | 2,724 |
April, 2013. Scheyvens, Henry; Sagara, Miho and Ibarra Gené, Enrique. Institute for Global Environmental Strategies (IGES), Japan. 133 pages. ISBN: 978‐4‐88788‐133‐4
Curious about REDD?
Want to learn more about REDD?
If you want to learn more about REDD, than read on this page...
Some external reading
MUST READ! June 2... | <urn:uuid:8f162c26-252c-43b5-be99-12fb98ec717e> | 3.296875 | 582 | Content Listing | Science & Tech. | 46.409762 | 2,725 |
Science & Technology - Posted by Mike Williams-Rice on Tuesday, July 3, 2012 10:42 - 0 Comments
Plasma loops may predict solar storms
RICE (US) — Loops of 1,800,000-degree Fahrenheit plasma rising from the sun’s surface may be the first signs of solar storms that threaten satellites orbiting Earth and power transmissio... | <urn:uuid:b0569688-440a-4c48-b54f-df60a8276ac5> | 2.984375 | 998 | News Article | Science & Tech. | 33.622073 | 2,726 |
Photosynthesis is a major determinate of plant growth and productivity. GoFORSYS proposes a Systems Biology approach to underpin the analysis and improvement of crop plant photosynthesis. It is based on a comprehensive systems analysis of the expression and regulation of photosynthesis to selected environmental respons... | <urn:uuid:044e6f50-18e0-4723-b1a7-77eb0803a376> | 2.546875 | 1,729 | Academic Writing | Science & Tech. | 1.021667 | 2,727 |
Hunt for Distant Planets Intensifies
When astronomers discovered planet GJ 1214b circling a star more than 47 light-years from Earth in 2009, their data presented two possibilities. Either it was a mini-Neptune shrouded in a thick atmosphere of hydrogen and helium, or it was a water world nearly three times the size of... | <urn:uuid:4744f620-87c0-44fc-9e26-cd1925c5188c> | 3.328125 | 1,359 | Knowledge Article | Science & Tech. | 34.361364 | 2,728 |
Does it matter whether long periods of hot weather, such as last year's heat wave that gripped the U.S. Midwest, happen in June or July, August or September?
Scientists studying the subtle effects of heat waves and droughts say that when such events happen makes a big difference.
Based on more than 25 years of data fro... | <urn:uuid:0747531a-2748-495e-a727-e855560f036b> | 3.75 | 771 | News Article | Science & Tech. | 44.38415 | 2,729 |
By LYNN YARRIS
On December 29, 1959, the late Caltech physicist Richard Feynman presented a lecture at the annual meeting of the American Physical Society entitled, "There's Plenty of Room at the Bottom." In this talk, the Nobel laureate speculated as to what technologies might be achieved if scientists could fabricate... | <urn:uuid:bb1b243c-c24d-4cad-b84f-4d8af2427baa> | 3.0625 | 1,761 | Knowledge Article | Science & Tech. | 28.460804 | 2,730 |
April 18, 2008
Helping reduce lifelong greenhouse gas emissions where you live
Contact: Allan Chen
As a climate-aware person with good intentions, you are most likely already taking steps to reduce your personal carbon footprint. You may be purchasing ENERGY STAR®-labeled products when you buy or replace your appliance... | <urn:uuid:56ab3edf-a0bb-43e8-87f8-cab0e55994ee> | 2.796875 | 2,198 | News (Org.) | Science & Tech. | 24.881272 | 2,731 |
This first edition was written for Lua 5.0. While still largely relevant for later versions, there are some differences.
The third edition targets Lua 5.2 and is available at Amazon and other bookstores.
By buying the book, you also help to support the Lua project.
|Programming in Lua|
|Part II. Tables and Objects Chap... | <urn:uuid:64d5c808-1df6-4de3-bfa6-ea375ea69c39> | 2.9375 | 275 | Documentation | Software Dev. | 47.3665 | 2,732 |
Light microscopes may be familiar to you from biology classes.
Light microscopes can magnify an object up to 1,000 times. Good light microscopes are powerful enough to view most algae, fungi, and protozoa.
High-quality light microscopes (pictured right) generally allow viewing of bacterial cells, too. They can’t view v... | <urn:uuid:f82b07a3-68f8-4c66-ac97-531e63e61bc5> | 3.3125 | 125 | Knowledge Article | Science & Tech. | 43.119496 | 2,733 |
The science of a solar eclipse
Total solar eclipse to occur over northeastern Australia
A total solar eclipse occurred over the northeastern Australian coast early in the morning of November 14 local time.
Clueless about this spectacular astronomical event? No worries, we've got you covered. We're here to explain what ... | <urn:uuid:c0151c56-b689-4662-9181-4e70f320cd84> | 3.703125 | 1,116 | Audio Transcript | Science & Tech. | 49.004485 | 2,734 |
Report an inappropriate comment
Thu Jan 17 14:37:39 GMT 2013 by Eric Kvaalen
"About 300,000 years after the big bang, the charged hydrogen that filled the universe became neutral and opaque, creating a cosmic fog that blotted out visible light for a billion years."
That's not right. When the hydrogen became neutral it ... | <urn:uuid:d58aeceb-1609-43ee-b59a-695d25764063> | 3.375 | 91 | Comment Section | Science & Tech. | 69.160203 | 2,735 |
Water Proof Neoprene
I am trying to explain to my class why Neoprene is
waterproof, but I lack the in-depth knowledge to do so. Please assist me
Neoprene is a trade name for a class of synthetic rubber. Most
rubbers are polymers built up from butadiene (H2C=CH-CH=CH2).
Isoprene replaces the H of the second carbon with ... | <urn:uuid:a5b91f73-9a10-4b35-b494-847a46bc043b> | 3.265625 | 763 | Q&A Forum | Science & Tech. | 45.680621 | 2,736 |
- Last Updated: 11:36 PM, July 5, 2012
- Posted: July 06, 2012
The European Organization for Nuclear Research announced Wednesday that it has discovered the elusive Higgs boson — a very big deal indeed.
The so-called “God particle” represents the “missing link” in the fundamental theory of physics, but its existence wa... | <urn:uuid:457a9257-29dc-44b0-bd32-37d0cf8f23c3> | 2.53125 | 255 | Truncated | Science & Tech. | 42.064318 | 2,737 |
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In an application with a large number of UI components, setting attributes for each can be a tedious task and can also lead to errors. A Theme allows us to set the st... | <urn:uuid:af972ed8-57d0-4e5a-9ece-ff1d22f60f03> | 2.546875 | 2,543 | Truncated | Software Dev. | 49.386208 | 2,738 |
The New Caledonian crow is a member of the corvid family, which also includes ravens, jays, and magpies. Corvids are considered the most intelligent bird species, and their tool-making abilities rival or surpass those of great apes--in fact, their puzzle-solving skills are about on par with a 5-year-old human child. Cr... | <urn:uuid:e3597fb4-b7be-4945-ae83-50c80e613b3c> | 3.46875 | 333 | Knowledge Article | Science & Tech. | 57.14293 | 2,739 |
Nowadays, electron microscopes are an essential tool, especially in the field of materials science. At TU Vienna, electron beams are being created that possess an inner rotation, similarly to a tornado. These "vortex beams" cannot only be used to display objects, but to investigate material-specific properties - with p... | <urn:uuid:2a0ae20e-9e35-4c91-ba0d-12fd656c4087> | 3.9375 | 816 | Knowledge Article | Science & Tech. | 32.231131 | 2,740 |
Feb. 2, 2006 It's a case of evolutionary detective work. Biology researchers at Lewis & Clark College and the University of Arizona have found evidence for an ancient transfer of a toxin between ancestors of two very dissimilar organisms--spiders and a bacterium. But the mystery remains as how the toxin passed between ... | <urn:uuid:2fd1ff43-5864-4492-828c-1675003ba8f7> | 3.484375 | 703 | News Article | Science & Tech. | 32.188206 | 2,741 |
Feb. 6, 2013 Since the observations made by English naturalist Charles Darwin on the Galapagos Islands, researchers have been interested in how physical barriers, such as isolation on a particular island, can lead to the formation of new species through the process of natural selection. Natural selection is a process w... | <urn:uuid:f965c29d-a442-46c3-af28-cee40c760388> | 4.25 | 1,107 | News (Org.) | Science & Tech. | 30.583058 | 2,742 |
Horizon Lines The C-9 class ship Horizon Spirit is a 268-meter steam powered container ship that will make the Los Angeles to Hawaii run as part of the Horizon Lines fleet for ARM's MAGIC campaign. It is an American made ship built in the late 1980s. Image: Flickr/ARM Climate Research Facility
Some new cargo is officia... | <urn:uuid:0f8c8403-95ab-413e-8e8b-7566b6c540f2> | 2.671875 | 860 | News Article | Science & Tech. | 34.088529 | 2,743 |
|Green Fuel from Carbon Dioxide|
Doctoral candidate Elias Frei controls the temperature in the reactor of the catalyst test device. (Credit: FMF)
ScienceDaily (June 13, 2012) — Scientists agree that carbon dioxide (CO2) has an effect on global warming as a greenhouse gas, but we still pump tons and tons of CO2 into the... | <urn:uuid:086ced5a-e9a4-437c-9a8b-1129aad924dd> | 3.546875 | 726 | News Article | Science & Tech. | 39.799169 | 2,744 |
What has global warming done since 1998?
What the science says...
|Select a level...||Basic||Intermediate|
For global records, 2010 is the hottest year on record, tied with 2005.
No, it hasn't been cooling since 1998. Even if we ignore long term trends and just look at the record-breakers, that wasn't the hottest year ... | <urn:uuid:a93e058c-554f-4b96-9543-7a640f0243ac> | 3.328125 | 362 | Personal Blog | Science & Tech. | 67.106966 | 2,745 |
'Plutonium pinch' nips NASA
Shortage of fuel squeezes exploration programme
NASA's future solar system exploration programme could be threatened by a shortage of plutonium-238, New Scientist reports.
Many of the agency's spacecraft rely on the nuclear fuel, but the US no longer produces the stuff, and despite previous ... | <urn:uuid:e14bb618-b5d9-441b-856b-14907b8d8abe> | 3.3125 | 337 | News Article | Science & Tech. | 34.231632 | 2,746 |
Photographic Evidence Proves That Squid Can Fly
Photo: Bob and Deb Hulse
Once, while boating off the coast of Jamaica in 2001, marine biologist Silvia Maciá and her husband caught a glimpse of an oddly familiar creature leaping from the waves, soaring with ease over the surface of the ocean. As the animal propelled its... | <urn:uuid:5538a7f2-16ce-4a14-9aa8-2453b94ab4c6> | 3.4375 | 749 | News Article | Science & Tech. | 44.879917 | 2,747 |
Data reported by the weather station: 80750 (LEBG)
Latitude: 42.35 | Longitude: -3.63 | Altitude: 894
Weather Burgos / Villafria
|Main||Year 1991 climate||Select a month|
To calculate annual averages, we analyzed data of 358 days (98.08% of year).
If in the average or annual total of some data is missing information of... | <urn:uuid:68bca18d-a10a-4513-8c57-163330dd83e1> | 2.671875 | 364 | Structured Data | Science & Tech. | 69.549274 | 2,748 |
Introduced Fish in Maine
White perch occurrence in Maine and New England freshwaters
- White perch naturally occur in coastal ponds and estuaries along the Atlantic coast of North America (ranging from Nova Scotia to South Carolina). Their historical natural presence in inland freshwaters is not well documented (as it ... | <urn:uuid:f41cc31e-90f1-49ee-9701-2a557d2b34a8> | 2.875 | 546 | Knowledge Article | Science & Tech. | 12.964466 | 2,749 |
Want to stay on top of all the space news? Follow @universetoday on Twitter
Parallax is the apparent difference in the position (line of sight to) an object, when the object is viewed from different locations. So, when we observe that a star has apparently moved (not to be confused with it actually having moved – prope... | <urn:uuid:342a21bd-ca28-4fd6-af04-8cf805b03a90> | 4.125 | 554 | Knowledge Article | Science & Tech. | 48.172262 | 2,750 |
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November 2010 Northern Rockies Skies
October 28, 2010 — A monthly look at the night skies of the northern Rocky Mountains, written by astronomers Ron Canterna, University of Wyoming; Jay Norris, Challis Idaho Observatory; and Daryl Macomb, Boise State University
November premieres our most beaut... | <urn:uuid:7226646a-c4bc-408b-8568-489352927368> | 2.75 | 778 | News (Org.) | Science & Tech. | 38.119963 | 2,751 |
The epibenthic sled was designed by Dr. Robert Hessler of Scripps Institute of Oceanography Howard Sanders and George R. Hampson of the Woods Hole Oceanographic Institution (Hessler, Sanders 1966). The net (1mm mesh) was specially designed plankton net made by William Shoeder's (WHOI) daughter, Mrs. Ernest Case of N.J.... | <urn:uuid:4716931b-0595-4c6f-af9a-fb9b57f6cac5> | 3.28125 | 449 | Knowledge Article | Science & Tech. | 54.203657 | 2,752 |
Via Jim Hoggan's elegant DeSmogBlog.com in Canada comes this link to a series of charts from the National Center for Atmospheric Research projecting global temperatures in the 21st-century, using atmospheric CO2 as of the year 2000 as the base.
Note that California is projected to warm by the year 2025 somewhat less th... | <urn:uuid:98a4e96d-7219-422d-95fd-32fb3a3c8f64> | 2.625 | 193 | Personal Blog | Science & Tech. | 62.998128 | 2,753 |
The Solar System is clearly divided: rocky terrestrial planets close in to the Sun, gaseous Jovian planets farther out, icy Kuiper Belt objects more distant still. However, exoplanetary systems—planets orbiting other stars—commonly violate those divisions. A whole class of exoplanets known as "hot Jupiters" are large p... | <urn:uuid:2e6496ce-15a5-4a1f-916b-d0c6693cead4> | 4.5 | 1,350 | News Article | Science & Tech. | 53.975032 | 2,754 |
This module provides a simple interface to compress and decompress files just like the GNU programs gzip and gunzip would.
The data compression is provided by the zlib module.
The gzip module provides the GzipFile class which is modeled after Python’s File Object. The GzipFile class reads and writes gzip-format files, ... | <urn:uuid:4cff7de6-16ff-42d9-9f0c-f826fba05610> | 3.03125 | 701 | Documentation | Software Dev. | 55.822597 | 2,755 |
This is an ecological niche prediction based on the BIOCLIM method.
The prediction is only as good as the data used. It works best when the search
results are a species or some other related set of specimen. Searches on families,
places or collectors will not provide reliable or meaningful results.
Calculation done usi... | <urn:uuid:176758d4-fe5c-450d-986c-8a5edcb95d5b> | 2.5625 | 358 | Knowledge Article | Science & Tech. | 53.712213 | 2,756 |
There are ethical guidelines that have to be followed when conducting experiments. They keep experimenters from committing acts of pointless waste or extreme destruction. That's fair. But if those ethical limitations were ever swept aside, I know what unholy acts of scientific mayhem I'd like to see.
10. Chimpanzees wi... | <urn:uuid:bbdbc173-f468-4446-abe2-6fc1b39e10db> | 2.875 | 1,275 | Listicle | Science & Tech. | 57.462539 | 2,757 |
I need to find the directions in which the directional derivative of at the point has the value 1.
I use the dot product formula for directional derivatives where is a unit vector; I set equal to one:
The components of the gradient vector:
I plug in the coordinates:
=1 , which is This tells me that the where is the com... | <urn:uuid:038b7780-8f54-4948-8f8f-99fee88b1f22> | 2.59375 | 148 | Q&A Forum | Science & Tech. | 54.2216 | 2,758 |
The Eastern Steppes of Mongolia are some of the largest and last remaining temperate grasslands in the world. They are also home to the Mongolian gazelle (Procapra gutturosa), or zeer, which migrate annually in herds ranging from 35,000 to 80,000 between winter and calving grounds spread throughout the steppes. Althoug... | <urn:uuid:eb9ba7e8-6018-439d-a6ce-3358e6510b63> | 3.796875 | 301 | Knowledge Article | Science & Tech. | 22.767613 | 2,759 |
The Kepler spacecraft vaulted away from Cape Canaveral late Friday, boosting a powerful space telescope into orbit around the sun for a $591 million mission to search for Earth-like planets orbiting distant stars.
"I think people everywhere want to know whether, with all the stars out there, do they have planets that a... | <urn:uuid:c17808a5-3839-429b-b3ba-c56fcde95a8e> | 3.40625 | 630 | News Article | Science & Tech. | 56.602339 | 2,760 |
Putting the squeeze on sand will expand understanding of soil mechanics
Mechanics of Granular Materials Putting the squeeze on sand will
expand understanding of soil mechanics
January 6, 1998: What do a brick of vacuum-packed coffee, land under houses in San Francisco, powdered makeup, and tire tracks on Mars have in c... | <urn:uuid:abf189a7-af18-4f62-b172-ef77ad12ec34> | 3.21875 | 372 | News (Org.) | Science & Tech. | 43.081561 | 2,761 |
Maybe, like Al Gore, you believe we are our own worst enemies in battling climate change. You too might think politicians manufacture denial-rhetoric to appease special interest groups, that industries are stubborn and cowardly in their resistance to the facts, and that the media sees science as a playground for concoc... | <urn:uuid:f6b435c9-b331-4ce9-8ad2-35dc14f5a035> | 3.265625 | 842 | News Article | Science & Tech. | 36.253781 | 2,762 |
heic0720 — Science Release
heic0719 — Photo Release
29 November 2007: Hubble has sent back an early Christmas card with this new NASA/ESA Hubble Space Telescope image of the nearby spiral galaxy Messier 74. It is an enchanting reminder of the impending season. Resembling glittering baubles on a holiday wreath, bright k... | <urn:uuid:e115e675-83c2-4a2e-aa0d-57c7ed3eaff2> | 2.59375 | 993 | Content Listing | Science & Tech. | 29.434257 | 2,763 |
Weather forecasts can save thousands of lives
In a recent article in Nature, Peter J. Webster, professor of Earth and Atmospheric Sciences at the Georgia Institute of Technology, underlines the importance of regional weather forecasts to avoid losses of live and property.
Hurricane Sandy was not as fatal as it could ha... | <urn:uuid:a87ded67-05fe-4509-9b48-64d0872eb7fc> | 3.25 | 289 | News Article | Science & Tech. | 22.65162 | 2,764 |
By drilling into Mars for the first time and analyzing a martian rock in unprecedented detail, Curiosity team members have shown that eons ago, microorganisms could have lived on Mars. At a spot on the floor of Gale crater-the site the rover has been studying since landing on Mars last August -- there was mud long-wett... | <urn:uuid:8f4af195-91a0-4bdc-bf7d-7f35e3684ca1> | 3.984375 | 771 | News Article | Science & Tech. | 41.444152 | 2,765 |
New in version 2.3.
The so-called CSV (Comma Separated Values) format is the most common import and export format for spreadsheets and databases. There is no ``CSV standard'', so the format is operationally defined by the many applications which read and write it. The lack of a standard means that subtle differences of... | <urn:uuid:ec6921f9-966d-4f62-ab3d-56cb66e9d60f> | 3.140625 | 264 | Documentation | Software Dev. | 43.451845 | 2,766 |
Wed January 30, 2013
How Florida's Aquifer Models Are Inaccurate, And Why That Might Be A Problem For Our Water Supply
Understanding how water flows through Florida's aquifer is integral to maintaining safe and sufficient supply of fresh water, but current computer models used to monitor the state's aquifers and spring... | <urn:uuid:5730dbad-a52d-447c-b005-108bf768ee6e> | 3.078125 | 445 | News Article | Science & Tech. | 40.350613 | 2,767 |
Crabs sound out their ideal reef home
Coastal acoustics Sounds given off by coastal reefs help crab larvae to settle into their ideal coastal home, say New Zealand researchers.
Marine scientist Dr Jenni Stanley and colleagues from the University of Auckland report their findings today in the journal Proceedings of the ... | <urn:uuid:e8a3efb0-09da-48f2-a959-b7acb18821c8> | 3.0625 | 532 | News Article | Science & Tech. | 51.852317 | 2,768 |
Science Fair Project Encyclopedia
Lanthionine is a non proteinogenic amino acid found in peptides of microbial origin. It is a sulfide bridged alanine dimer (HOOC-CH(NH2)-CH2-S-CH2-CH(NH2)-COOH) which is synthesized from cysteine and dehydroalanine by posttranslational modifications of peptides.
The contents of this ar... | <urn:uuid:43fa54ac-200d-4000-8bb4-3a7354bf27fd> | 2.796875 | 116 | Knowledge Article | Science & Tech. | 33.594 | 2,769 |
The SuperCollider language is an object oriented language. All entities in the language are objects. An object is something that has data, representing the object's state, and a set of operations that can be performed on the object. All objects are instances of some class which describes the structure of the object and... | <urn:uuid:ba8e5980-e949-4e0e-91ad-6ff6b681b4e8> | 3.765625 | 662 | Documentation | Software Dev. | 41.052875 | 2,770 |
With the astounding growth of the Internet over just the last few years has come a concomitant increase in the number of environmental information resources available on the Net. These resources come in a bewildering array: mailing lists, Usenet newsgroups, gopher servers and World Wide Web (WWW) servers, among others.... | <urn:uuid:a55316c7-7125-4b34-ba01-cd5b2d56c2d5> | 2.765625 | 1,183 | Knowledge Article | Science & Tech. | 37.044572 | 2,771 |
By Kevin Davies
October 23, 2009 | HONOLULU – Stefan Schuster, an evolutionary geneticist at Penn State University, presented the first data on the sequencing of Kalahari Bushmen, one of if not the oldest human ethnic groups in the world.
As Schuster described in the abstract of his talk at the American Society of Huma... | <urn:uuid:7b2ecde2-e661-43dd-87b2-cd4bb97ce125> | 2.65625 | 884 | News Article | Science & Tech. | 18.718062 | 2,772 |
About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.
6 posts • Page 1 of 1
The reason I ask is because I got confused while reading, m book seems to say its both. I was reading it before and it said that cyanobacteria ... | <urn:uuid:18209ce8-2cdf-48d7-8736-be427cf7bdbd> | 3.078125 | 956 | Comment Section | Science & Tech. | 42.314463 | 2,773 |
Discussion of everything related to the Theory of Evolution.
Obviously, robsabba，your understanding and reply are tangled.
1．What is heredity? The sum of characteristics of phenotype re-copied and transmitted from parent to offspring. This replication includes two points: First, the phenotype which was copied by offspr... | <urn:uuid:8183073e-ea1d-4ab2-b6ed-b05264e23bc6> | 2.671875 | 710 | Comment Section | Science & Tech. | 41.09845 | 2,774 |
Detailed DescriptionA color base is a container of color elements.
The most common use of color base is in the implementation of a pixel, in which case the color elements are channel values. The color base concept, however, can be used in other scenarios. For example, a planar pixel has channels that are not contiguous... | <urn:uuid:9a505fd8-c737-4cf5-a38a-2f790d227a17> | 2.625 | 121 | Documentation | Software Dev. | 44.923595 | 2,775 |
|Version||0.2 - Friday, 23 February 2007|
|Source code repository|
The library is a set of macros tries to emulate python's generators functionality in lisp.
One difference from the python's generators it is impossible to save a generator to a variable and call 'next' method manually. Only 'foreach' syntax is supported... | <urn:uuid:e84dacd8-3b41-45eb-b1cd-466d2fe585ec> | 3.046875 | 572 | Documentation | Software Dev. | 51.733725 | 2,776 |
The True Rotational Symmetry of Space
The following deep, elegant, and beautiful explanation of the true rotational symmetry of space comes from the late Sidney Coleman, as presented to his graduate physics class at Harvard. This explanation takes the form of a physical act that you will perform yourself. Although eleg... | <urn:uuid:5501c0de-6ffb-4f47-bb1c-0326f12325c2> | 3.234375 | 962 | Knowledge Article | Science & Tech. | 48.305342 | 2,777 |
Yes, I am aware that this is the temperature change that a doubling of CO2 would have in a scenario with no feedbacks- a blackbody.
It is likely that there are negative feedbacks that act to supress the warming even further.
There is only one negative feedback that has been clearly demonstrated and that is the simple f... | <urn:uuid:fbf90794-3df8-4314-8462-61753796de10> | 3.171875 | 1,093 | Comment Section | Science & Tech. | 53.460705 | 2,778 |
Public release date: 15-Feb-2002
Contact: Diana Wall
International Biodiversity Observation Year
Information technology provides biologists with new tools for biodiversity conservation
Information Technology, or IT, is spurring a revolution in biodiversity research that can deliver a more complete view of the world and... | <urn:uuid:7084cfe1-1852-4f30-9e8b-7f22d805852e> | 3.359375 | 1,801 | News (Org.) | Science & Tech. | 9.787852 | 2,779 |
Sub Exercise() Dim Tracks As Integer End Sub
Instead of using As Integer, you can use the % type character. Therefore, the above declaration could be done as follows:
Sub Exercise() Dim Tracks% End Sub
After declaring the variable, you can assign the desired value to it. If you assign a value lower than -32768 or highe... | <urn:uuid:9b723c88-2324-4cae-8ae9-cf4ae610fc29> | 2.765625 | 147 | Tutorial | Software Dev. | 40.94 | 2,780 |
||July 18, 2003
GSA Release No. 03-21
|| Contact: Ann Cairns
Wildland Fire Impacts on Watersheds: A Special Conference of The Geological Society of America
Boulder, CO – Wildland fires are an inevitable fact of nature; recently they’ve also been viewed as a national security issue. They burn more than two million acres... | <urn:uuid:cad4a765-40d3-4410-9a9e-b8f3e3bcc567> | 3.28125 | 508 | News (Org.) | Science & Tech. | 30.524412 | 2,781 |
The shear wave velocity field, calculated using the Multi-channel Analysis of Surface Waves (MASW) method (Park et al., 1999; Xia et al., in press) was used to map the bedrock surface at depths of 6 to 23 ft and identify potential fracture zones within bedrock at a site in Olathe, Kansas. Preliminary analysis of this s... | <urn:uuid:cda9c3a9-957b-4acf-a1b7-14b654598378> | 2.578125 | 870 | Academic Writing | Science & Tech. | 27.639147 | 2,782 |
Metamorphic Rock Process III
Written for the KidsKnowIt Network by:
Scientists call the third way metamorphic rocks form a tectonic process. Sometimes I think scientists like to use long words to make it harder for non-scientists to figure out what they are talking about. Here's what they are talking about: The large p... | <urn:uuid:1d1ec831-9cdb-449e-b509-151c54bcc473> | 4.1875 | 613 | Knowledge Article | Science & Tech. | 52.596815 | 2,783 |
Where Broken DNA is Repaired
|Media Contacts: Paul Preuss, (510) 486-6249, email@example.com
Lynn Yarris, (510) 486-5375, firstname.lastname@example.org
Scientific Contact: Sylvain Costes, (510) 486-6988, email@example.com
BERKELEY, CA Ionizing radiation, toxic chemicals, and other agents continually damage the body's ... | <urn:uuid:0e0da139-1c88-47a8-bcd9-3fb2fe0d0abe> | 3.265625 | 2,038 | Knowledge Article | Science & Tech. | 36.628359 | 2,784 |
Do the European Great Reed Warblers (Acrocephalus arundinaceus) reach South Africa during wintering?
Publikation/Tidskrift/Serie: Journal of Ornithology
Former studies have shown that the Great Reed Warbler (Acrocephalus arundinaceus) has two genetically distinguishable haplogroups (a ‘‘western’’ and an ‘‘eastern’’ cla... | <urn:uuid:8899591a-3c26-4b5e-ae4a-cbc8fd7109c8> | 3.09375 | 424 | Academic Writing | Science & Tech. | 17.193571 | 2,785 |
SHUTDOWN(2) BSD Programmer's Manual SHUTDOWN(2)
shutdown - shut down part of a full-duplex connection
#include <sys/types.h> #include <sys/socket.h> int shutdown(int s, int how);
The shutdown() call causes all or part of a full-duplex connection on the socket associated with s to be shut down. If how is SHUT_RD, furthe... | <urn:uuid:c2065791-ba7d-4078-a491-2a47b2e2c927> | 2.984375 | 428 | Documentation | Software Dev. | 79.693067 | 2,786 |
It was 1958; IBM was the leader in creating computers that took up entire rooms. Their recent creation, the IBM 704, was projected to only sell six units and was priced accordingly. When it ended up selling well over 100 units, it helped propel the careers of its two lead designers. Gene Amdahl, from whom we get Amdahl... | <urn:uuid:15298b71-2ad3-4214-acac-4c6ad2561899> | 3.296875 | 2,415 | Personal Blog | Software Dev. | 58.713388 | 2,787 |
British poet William Blake once wrote that a world was contained in a grain of sand. Physicists have done one better, finding a surprising link between streams of flowing sand grains and the birth of the universe.
A new study in the latest issue of the journal Physical Review Letters finds that flowing sand grains show... | <urn:uuid:a2b0e1f2-255b-4b3e-8ae9-b398daf107b6> | 3.78125 | 364 | News Article | Science & Tech. | 41.783175 | 2,788 |
Activity on the web can provide more than a snapshot of what people are interested in on a given day. It is also being used, with some success, to predict future stock prices and election results.
Tools such as Google Trends and Blogpulse track what people are talking or thinking about by recording the frequency with w... | <urn:uuid:ae618445-324e-4e2b-82ce-ebc6176f18e4> | 2.515625 | 195 | Truncated | Science & Tech. | 43.355282 | 2,789 |
Remnants of BARBARA
Surface Wind Field
Click image to zoom out – Download GIS data
Click Here for a Printer Friendly Graphic
About this product:
This graphic shows the areas potentially being affected by the sustained winds of tropical storm force (in orange)
and hurricane force (in red). The display is based on the wi... | <urn:uuid:f4a32166-35aa-4349-8650-3b791a1b5564> | 2.6875 | 238 | Knowledge Article | Science & Tech. | 21.532938 | 2,790 |
If a rough surface is illuminated by a coherent lightwave of wavelength λ1, it is not possible to determine the surface profile from the phases of the speckle field formed by the scattered light. If the rough surface is illuminated, however, by an additional coherent wave of wavelength λ2, the phase differences between... | <urn:uuid:96b5d49d-375c-4ba3-bbc0-3bc2ca0e1411> | 2.703125 | 306 | Academic Writing | Science & Tech. | 28.879404 | 2,791 |
Link between warming and past droughts questioned
Posted January 3, 2013; 11:25 a.m.
A series of recent droughts from Australia to the United States has led some scientists to warn that global warming has already begun to increase worldwide drought. But new research from Princeton and the Australian National University... | <urn:uuid:074254e0-6c55-48d3-93ef-5c7e362d5f0b> | 3 | 984 | News (Org.) | Science & Tech. | 35.211135 | 2,792 |
From Michigan State University
Research may take the 'anti' out of antioxidants
Robert Hausinger and Timothy Henshaw
EAST LANSING, Mich. -- In the quest to repair damaged DNA -- a process believed crucial in combating ailments ranging from cancer to aging -- antioxidant has been the Holy Grail. But findings published t... | <urn:uuid:6a80bbe6-d2a4-4f07-a3d4-87d587ee4910> | 2.84375 | 659 | News Article | Science & Tech. | 48.479173 | 2,793 |
Aug. 7, 2012 Compared with open farmland, wooded "shade" plantations that produce coffee and chocolate promote greater bird diversity, although a new University of Utah study says forests remain the best habitat for tropical birds.
The findings suggest that as open farmland replaces forests and "agroforests" -- where c... | <urn:uuid:d791545e-4e2c-4342-b201-53e88538b4ba> | 3.203125 | 1,761 | News Article | Science & Tech. | 34.461552 | 2,794 |
In the previous millenium, the rate and duration of warming during the 20th century was much greater than during any of the previous 9 centuries. Similarly, the 1990s were the warmest decade of that century and 1998 the warmest year of the previous 1,000 years.
In 2001, Greenfacts, the Intergovernmental Panel on Climat... | <urn:uuid:8725eac3-dd5f-4a98-b667-1057c0e65739> | 3.84375 | 187 | Knowledge Article | Science & Tech. | 60.122663 | 2,795 |
Earth in the Solar System
The planet earth is the 3rd planet from the sun: A solar system consists of the moon, seven more planets and the sun. Our sun is certainly an average dimension star. Many objects inside the solar system happen to be in regular, predicable movement. These kinds of motions describe our time, the... | <urn:uuid:f8861e14-8db6-4732-a179-e095a1e444d2> | 3.484375 | 452 | Knowledge Article | Science & Tech. | 45.222702 | 2,796 |
Organisms accidentally or intentionally introduced into areas where they did not previously originate or live.
Southeast Ecological Science Center [ More info] Science center in Florida focusing on amphibians and reptiles, coastal ecology, contaminants and ecotoxicology, imperiled fish, manatees, and invasive species
S... | <urn:uuid:c6d48ffc-7ce9-42ce-9d8f-757e0f69d62d> | 3.234375 | 540 | Content Listing | Science & Tech. | 11.153529 | 2,797 |
When Bob Pitz studies a problem, it really is rocket science. Vanderbilt’s combustion expert, Robert W. Pitz, professor and chair of the Department of Mechanical Engineering, explores ways to make aircraft and rocket engines burn more efficiently, safely and powerfully for clients that include NASA and the United State... | <urn:uuid:2770f96f-3963-4a71-a414-444a37a84e57> | 4.125 | 1,150 | Knowledge Article | Science & Tech. | 32.857277 | 2,798 |
Birds plummeting to extinction
World Land Trust (WLT) often collaborates with American Bird Conservancy (ABC) and their recent newsletter concentrated on declining shorebirds, or waders to those on the eastern side of the Atlantic.
It should be sounding really serious alarm bells. The Eskimo Curlew, like the Passenger ... | <urn:uuid:027360f6-5e96-403f-8799-cb720622de38> | 3.015625 | 426 | News (Org.) | Science & Tech. | 40.798807 | 2,799 |