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Novelist and essayist Jonathan Franzen highlights the worldwide decline of seabirds, the threats they face, and how Island Conservation and other organizations are working to prevent extinctions on islands around the world.
Some might imagine that seabirds which nest on remote islands and spend the majority of their li... | <urn:uuid:aa7ba59b-fcd1-4ba3-9446-2e23703e807d> | 3.75 | 716 | News (Org.) | Science & Tech. | 24.379768 | 95,603,802 |
Anisotropic Stiffness Tensor Measurement for Standing Trees using Acoustics
Conference: Publication Date: 24 October 2016Testing Method:
Acoustic non-destructive testing techniques have been developed to measure properties, such as stiffness, of standing trees and logs. Standing tree stiffness measurements are commonly... | <urn:uuid:9852ef7c-8f4c-4572-9561-01615d4733d7> | 2.578125 | 1,948 | Academic Writing | Science & Tech. | 74.272635 | 95,603,806 |
Tokyo: Astronomers have found signs of a giant icy planet growing around TW Hydrae, one of the closest young stars to Earth.
Based on the distance from the central star and the distribution of tiny dust grains, the baby planet is thought to be an icy giant, similar to Uranus and Neptune in our solar system.
"Combined w... | <urn:uuid:40f05778-9ab0-42f2-8b59-ef6c9262e839> | 3.203125 | 378 | News Article | Science & Tech. | 35.026175 | 95,603,812 |
INSIGHTS INTO THE RING-OPENING MECHANISM OF BENZENE METABOLISM; AN INVESTIGATION OF THE OXIDATION OF MODEL OXEPINS BY CYTOCHROME P450
Benzene is a known human carcinogen and environmental pollutant. The mechanism of its metabolism by cytochrome P450 is well understood. Initial oxidation of benzene produces benzene oxid... | <urn:uuid:2aa247db-8e84-4303-a7cd-f3de7cbd2814> | 2.5625 | 741 | Academic Writing | Science & Tech. | 13.020988 | 95,603,816 |
Earlier in our inventory efforts, the Upper Columbia Basin Network focused on bats in the John Day Fossil Beds National Monument. Bats are hard to study because they are only out at night, hide during the day, and tend to be found in places where humans have a hard time getting to, like sheer cliffs or deep caves.
Duri... | <urn:uuid:a166d5cb-1be7-4916-a9e2-47ff61b24247> | 3.40625 | 294 | Knowledge Article | Science & Tech. | 47.426723 | 95,603,819 |
- Open Access
Lunar cratering chronology: Statistical fluctuation of crater production frequency and its effect on age determination
© The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The... | <urn:uuid:8a508b40-38dd-41bf-a58d-89fd1dacc1c8> | 2.84375 | 272 | Truncated | Science & Tech. | 41.66375 | 95,603,828 |
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Chicago Wilderness region urban forest vulnerability assessment and synthesis: a report from the Urban Forestry Climate Change Response Framework Chicago Wilderness pilot projectAuthor(s): Leslie A. Brandt; Abigail Derby Lewis; Lydia Scott; Lindsay Darling; Robert T. Fahey; Louis Iverson; David J. ... | <urn:uuid:2db0686a-26a7-437c-addf-d77d6a815af7> | 2.546875 | 1,142 | Truncated | Science & Tech. | 30.613942 | 95,603,829 |
The promise of the genomics revolution - the ability to compare important genes and proteins from many different organisms - is that such detailed knowledge will produce new scientific insights that will improve human quality of life. In work on a key human enzyme, PBGS (porphobilinogen synthase), the laboratory of Fox... | <urn:uuid:1311563e-3924-4f17-a415-35984b82ce3f> | 3.09375 | 959 | Content Listing | Science & Tech. | 38.100273 | 95,603,865 |
The spiral of Theodorus (which is also called the square root spiral, Einstein spiral, and Pythagorean spiral) was first devised by the Greek mathematician Theodorus of Cyrene during the 5th century BC. The spiral consists of a sequence of right triangles where the ith triangle has side lengths 1, √i, and √(i+1). Each ... | <urn:uuid:641ea82c-f24e-46b2-824a-0d5feb12e961> | 4.03125 | 2,094 | Documentation | Software Dev. | 64.401088 | 95,603,872 |
I have seen recently several articles about using magnetic fields to deflect plasma around a spaceship. The first was about deflecting "cosmic rays", such as protons being part of the stellar wind from the Sun. They all involve the use of super conducting magnets, similar in concept to those used in the Large Hadron Co... | <urn:uuid:6eb74b4b-e28a-493b-b4d1-e0b122d6bdf3> | 2.859375 | 222 | Personal Blog | Science & Tech. | 48.569911 | 95,603,874 |
A material such as a salt or a drug is hygroscopic if it absorbs water vapour from the air when the relative humidity (RH) of the air is larger than a certain value specific for this material. A material is non-hygroscopic, if it doesn’t absorb water vapour at RH’s below saturation. According to this definition a salt ... | <urn:uuid:a8089c54-3374-4d96-b5ff-1f53668aeee0> | 3.328125 | 294 | Knowledge Article | Science & Tech. | 39.0785 | 95,603,880 |
It is tesitfied that the continental shelf of the East China Sea was exposed and covered with the huge wetland and grassland ecosystems during the the last two glacial periods.
This shows terrigenous palynomorphs of short-distance transportation: light microscope and scanning electron microscope photos of pollen and sp... | <urn:uuid:bffa40d0-4ca4-4848-a161-74cded3a4971> | 3.484375 | 1,297 | Content Listing | Science & Tech. | 40.761601 | 95,603,902 |
When the ants come marching in, having miles of linked habitats may not be such a good idea after all.
In a classic example of the law of unintended consequences, new University of Florida research suggests that wildlife corridors – strips of natural land created to reconnect habitats separated by agriculture or human ... | <urn:uuid:bc89edf9-af98-47ce-a85c-eca95867cdfe> | 3.46875 | 1,451 | Content Listing | Science & Tech. | 32.746136 | 95,603,903 |
“While gold nanoparticles are being used by so many researchers – chemists, materials scientists and biomedical engineers – no one understood their molecular and electronic structures until now,” said Robert Whetten, a professor in the Georgia Institute of Technology’s School of Physics and School of Chemistry and Bioc... | <urn:uuid:7b92d4d7-1c04-4dc2-834c-0c75136b44db> | 3.75 | 1,929 | Content Listing | Science & Tech. | 28.747673 | 95,603,934 |
A sample of nitrogen gas has a volume of 3.00 L at 25 degrees C. What volume will it occupy at each of the following temperatures if the pressure and number of moles are constant:
We will use the ideal gas law for solving this.
We know that, PV = nRT
Where R is the Universal gas constant and n is the number of ...
The ... | <urn:uuid:3a683d7b-6c22-470e-a944-d9662f0cf976> | 3.4375 | 98 | Tutorial | Science & Tech. | 75.544578 | 95,603,985 |
By Leticia Brambila-Paz,Peter Newstead,Richard P. W. Thomas,Oscar Garcia-Prada
Read Online or Download Moduli Spaces (London Mathematical Society Lecture Note Series) PDF
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In line with a chain of lectures for grownup scholars, this energetic and pleasing ebook proves that, faraway from ... | <urn:uuid:08ac0565-8e4d-42c7-93e8-43a284919d8b> | 2.625 | 444 | Product Page | Science & Tech. | 22.697453 | 95,604,019 |
The brown dwarf is named CFBDS J005910.83-011401.3 (it will be called CFBDS0059 in the following). Its temperature is about 350°C and its mass about 15-30 times the mass of Jupiter, the largest planet of our solar system . Located about 40 light years from our solar system, it is an isolated object, meaning that it doe... | <urn:uuid:b85fd865-b2fe-4504-b1ea-aa5fa670c8bd> | 4.03125 | 1,562 | Content Listing | Science & Tech. | 49.785072 | 95,604,023 |
The scientists observed twisting patterns in the polarization of the cosmic microwave background—light that last interacted with matter very early in the history of the universe, less than 400,000 years after the Big Bang.
These patterns, known as “B modes,” are caused by gravitational lensing, a phenomenon that occurs... | <urn:uuid:9ff9e029-c0bb-404a-b19b-2f39394976f8> | 3.875 | 1,655 | Content Listing | Science & Tech. | 33.139896 | 95,604,041 |
What's the Latest Development?
By studying the neurons inside rat brains, British neuroscientist Kathryn Jeffery has concluded that mammals most likely collapse the world into a two-dimensional map when navigating and calculating distances. Jeffrey's team enticed rats to climb up a spiral staircase while collecting ele... | <urn:uuid:fa5c01c8-013f-4c39-a9a9-a9b1640d4274> | 3.796875 | 233 | Knowledge Article | Science & Tech. | 45.797122 | 95,604,055 |
Temporal range: Triassic–present 235–0 Ma
|A digger wasp, Sphex pensylvanicus|
Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants. Over 150,000 living species of Hymenoptera have been described, in addition to over 2,000 extinct ones.
Females typically have a special ovipositor for ... | <urn:uuid:67cd0d53-d2e3-49b8-9f06-c72868df5b28> | 3.671875 | 6,024 | Knowledge Article | Science & Tech. | 56.026864 | 95,604,057 |
Calculate the area of masonry to build wall with dimensions of 9 m × 4 m with 4 windows of size 64 cm × 64 cm.
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
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To solve this example are needed these knowledge from mathematics:
Next si... | <urn:uuid:8a26a51e-591e-40b5-8b7d-2608f01dea0d> | 2.75 | 756 | Tutorial | Science & Tech. | 89.46852 | 95,604,061 |
Outlines of Statistical Mechanics
In this chapter, we start with certain principles and describe the general methods of statistical mechanics [2.1–17]. If we assume that every quantum-mechanical state (microscopic state) has the same weight (the principle of equal probability), then we can establish a standpoint where ... | <urn:uuid:a087083a-f9df-4f6e-b34c-179c7df94c6d> | 3.234375 | 417 | Truncated | Science & Tech. | 48.323352 | 95,604,093 |
All atoms of an element have the same number of protons. When an atom gives off radiation, it turns into a different kind of atom. Some atoms decay very quickly,..Some materials are radioactive. When an atom of a radioactive substance gives off radiation, it becomes a new type of atom. There are two..There is more nitr... | <urn:uuid:0afa7b14-6e78-4a0e-9fae-23da19618b5c> | 3.59375 | 311 | Spam / Ads | Science & Tech. | 58.90276 | 95,604,145 |
Space bacteria found in British river could be new power source for the world
- Using microbial fuel cell Bacillus stratosphericus generates twice as much electricity as other bacteria
- Could be used to power appliances in developing countries
Bacteria usually found orbiting high above the Earth have been found in a B... | <urn:uuid:cadc6ad0-4879-460c-920a-1e60ff607f5f> | 3.125 | 788 | Truncated | Science & Tech. | 16.502396 | 95,604,172 |
|MLA Citation:||Bloomfield, Louis A. "Question 1582: Why does combining red, green, and blue light create white light?"|
How Everything Works 22 Jul 2018. 22 Jul 2018 <http://howeverythingworks.org/print1.php?QNum=1582>.
The color sensing cells in our eyes are known as cone cells and they can detect only three differen... | <urn:uuid:1fbe0752-440c-4ccc-bdbe-8a24f6261406> | 3.46875 | 525 | Knowledge Article | Science & Tech. | 58.428429 | 95,604,174 |
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Mitochondrial ATP synthase catalyzes ATP synthesis, utilizing an electrochemical gradient of protons across the inner membrane during oxidative phosphorylation. It is composed... | <urn:uuid:927de2b1-7d90-45ee-af02-ba5215dabf39> | 2.65625 | 376 | Knowledge Article | Science & Tech. | 22.48559 | 95,604,180 |
Foreshock migration preceded main Kumamoto earthquake in 2016 Slow slip spreads toward the main quake’s fault
A research group at the University of Tokyo found that the swarm of smaller quakes that acted as a precursor to the main Kumamoto earthquake in 2016 migrated in parallel and perpendicular directions—along the f... | <urn:uuid:f4cc77aa-f3b3-4361-a4ed-f64ce75cab2f> | 3.234375 | 782 | Knowledge Article | Science & Tech. | 33.606118 | 95,604,184 |
First Characterization of a Sensory [FeFe] Hydrogenase
Hydrogenases are enzymes capable of making hydrogen gas (H2) using protons from water, a reaction with relevance to a potential future green energy economy based on H2.
Bacteria containing these enzymes often produce H2 as a waste product during sugar metabolism in... | <urn:uuid:5994814d-d438-4ca0-acda-702d4d10bcd8> | 3.171875 | 1,324 | Content Listing | Science & Tech. | 33.514152 | 95,604,195 |
２８ Loop Quantum Gravity(LQG) 【What is the Universe？】Dialogue with the Universe
[Electromagnetic force + Weak interaction＋Strong interaction ＋ Gravity]
・LQG is an attempt to merge quantum mechanics and general relativity.
・Quantum gravity (QG) is a field of theoretical physics that seeks to describe the force of gravit... | <urn:uuid:d968b9cc-5d8f-46e6-b426-726cf6877507> | 3.390625 | 1,128 | Knowledge Article | Science & Tech. | 45.625422 | 95,604,199 |
Researchers using supercomputer simulations have exposed a very violent and critical relationship between interstellar gas and dark matter when galaxies are born – one that has been largely ignored by the current model of how the universe evolved.
The findings, published today in Science, solve a longstanding problem o... | <urn:uuid:9c6e7e34-eaa8-4fbc-8617-57a4c96a09fe> | 3.484375 | 1,030 | Content Listing | Science & Tech. | 35.623314 | 95,604,208 |
Cloning - Wikipedia
Cloning is the process of producing genetically identical individuals of an organism either naturally or artificially. In nature, many organisms produce clones ...
What is Cloning - Learn.Genetics
Many people first heard of cloning when Dolly the Sheep showed up on the scene in 1997. Artificial clon... | <urn:uuid:948a735f-a91f-47b3-ad10-cc2f0b16df0f> | 3.5 | 474 | Content Listing | Science & Tech. | 29.252429 | 95,604,214 |
Showing 1-3 of 3 Resources
Click & LearnThis interactive explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history.
Scientists at Work(9 min 55 sec) Planarians have an amazing ability to regenerate lost tissu... | <urn:uuid:164ddb53-b533-4e5c-b60e-c6b20b0397ac> | 3.203125 | 154 | Content Listing | Science & Tech. | 30.540185 | 95,604,233 |
Bigger is better, if you're a leatherback sea turtle.
For the first time, researchers at the University of Wisconsin-Madison, Florida Atlantic University (FAU), and the National Oceanic and Atmospheric Administration (NOAA) have measured the forces that act on a swimming animal and the energy the animal must expend to ... | <urn:uuid:58def9d1-a422-474b-b12d-257a52810959> | 3.953125 | 1,862 | Content Listing | Science & Tech. | 43.062977 | 95,604,234 |
Frog croaks in ultrasound
Thursday, 16 March 2006
The concave-eared torrent frog (Amolops tormotus) is the first non-mammalian species known to use the ultra-high frequencies that humans cannot hear.
It joins bats, dolphins and whales, and a small number of rodents, in the elite club of creatures that can communicate t... | <urn:uuid:176f292a-1e34-424c-8e1a-868cc8c65700> | 3.515625 | 381 | News Article | Science & Tech. | 47.397245 | 95,604,244 |
+44 1803 865913
Edited By: G Baretta-Bekker, Egbert K Duursma and Bouwe R Kuipers
357 pages, 127 illus
The multidisciplinary character of this encyclopaedia brings together the basic items of marine biology, chemistry, geology, and physical oceanography, by way of 3,000 up-to-date, alphabetically listed keywords. The b... | <urn:uuid:7d10690b-278f-4f49-a5f0-368a290bf187> | 2.75 | 187 | Product Page | Science & Tech. | 28.815769 | 95,604,269 |
High diversity in an urban habitat: are some animal assemblages resilient to long-term anthropogenic change?
- 761 Downloads
Urbanization is thought to lead to the loss of biodiversity both because of habitat disturbance and the increased abundance of invasive species. However, most studies of biodiversity in cities ar... | <urn:uuid:e07f8957-2424-47a7-839a-9ae6edde1e8d> | 3.1875 | 1,385 | Academic Writing | Science & Tech. | 40.192062 | 95,604,294 |
Emory University scientists have for the first time used a new class of luminescent "quantum dot" nanoparticles in living animals to simultaneously target and image cancerous tumors. The quantum dots were encapsulated in a highly protective polymer coating and attached to a monoclonal antibody that guided them to prost... | <urn:uuid:8c04a4a5-7f5b-4ed2-a6be-6620aa36f721> | 3.03125 | 1,116 | Content Listing | Science & Tech. | 32.401278 | 95,604,324 |
Large variation in mitochondrial DNA of sexual and parthenogenetic Dahlica triquetrella (Lepidoptera: Psychidae) shows multiple origins of parthenogenesis
Elzinga, Jelmer A.
Shama, Lisa N.S.
- Journal Article
Rights / licenseCreative Commons Attribution 2.0 Generic
Background Obligate parthenogenesis is relatively rare... | <urn:uuid:be850a7a-6091-400b-a9be-49c470ed037f> | 2.59375 | 454 | Academic Writing | Science & Tech. | -8.724047 | 95,604,325 |
How scientists discovered our first interstellar mystery visitor
The astronomy world has been abuzz recently with the discovery of a new object cutting through our solar system. Its path indicates it came from interstellar space — the first body of its kind ever observed.
When it was first discovered, astronomers thoug... | <urn:uuid:497f968a-68f6-4d29-8625-8ffd5e7da8f7> | 3.65625 | 1,404 | News Article | Science & Tech. | 42.584853 | 95,604,335 |
Imagine if every animal and plant on the planet collapsed into a single population each, says ecologist Gerardo Ceballos. If lions disappeared except from one small corner of Kenya, the prey they keep in check would run amok everywhere else. If sparrows were no more except in one Dutch forest, the seeds that sparrows d... | <urn:uuid:85dfad4f-52b3-4809-b2e7-e8fec688379f> | 4 | 1,925 | News Article | Science & Tech. | 50.403299 | 95,604,337 |
The discovery, announced on March 28,, is forcing scientists to rethink their ideas about the formation of galaxies.
“We didn’t expect that this could happen,” said Yale University astronomer Pieter van Dokkum, lead author of the research published in the journal Nature.
Paradoxically, the discovery of a galaxy without... | <urn:uuid:aa6972a7-8d57-4111-ac36-f78764e6d73a> | 3.796875 | 498 | News Article | Science & Tech. | 44.683086 | 95,604,355 |
The Solar System is so complex! Just when climatologists think they have it figured out, they discover how little they understand. Here's an example:
The thermal structure and composition of the atmosphere is determined fundamentally by the incoming solar irradiance. Radiation at ultraviolet wavelengths dissociates atm... | <urn:uuid:300aba83-4ce9-49e2-87eb-1ca10563c45a> | 3.65625 | 527 | Personal Blog | Science & Tech. | 25.25251 | 95,604,368 |
Two Types of Inulin Fructotransferases
AbstractInulin is a polysaccharide contained in chicory, dahlia, and other plants. An oligosaccharide DFA III is produced from inulin using a microbial enzyme, inulin fructotransferase (DFA III producing) [EC 188.8.131.52]. The oligosaccharide DFAIII has a unique functionality tha... | <urn:uuid:dd140b68-670f-461c-96f2-b12b30b7fbc6> | 2.71875 | 355 | Academic Writing | Science & Tech. | 35.08125 | 95,604,393 |
Between now and the end of July, all five of the brightest planets can be spotted in Santa Barbara's evening skies, with the Moon acting as a convenient guidepost to help you find them
On dark evenings starting now through June 22, head for a spot with a dark southern horizon and try to spot the 4 Vesta asteroid.
Santa... | <urn:uuid:75ca6743-355a-4d06-a6a1-5c00caa63f15> | 2.625 | 716 | Content Listing | Science & Tech. | 40.664233 | 95,604,406 |
Functions of carbohydrates
The main role of carbohydrates is to provide energy.
Living organisms use monosaccharides to fuel metabolic reactions. They produce ATP in a process of aerobic cellular respiration.
Stored form of carbohydrates is polysaccharides such as starch and glycogen.
Besides this base task - to serve ... | <urn:uuid:7dc4107b-8143-49ef-b9b2-f71aac2631f2> | 3.953125 | 1,672 | Knowledge Article | Science & Tech. | 30.468869 | 95,604,455 |
Authors: Raji Heyrovska
During the synthesis of a deuteron nucleus from a neutron and a proton, an electron, positron pair and an antineutrino, neutrino pair are released. The electrostatic energy (order of MeV) of the former pair is released as gamma radiation and is equivalent to the mass defect. Based on the largest... | <urn:uuid:d35f305e-8a26-45ac-9fb4-15d2e2f032ce> | 2.5625 | 466 | Academic Writing | Science & Tech. | 57.872238 | 95,604,457 |
From: European Space Agency
Posted: Tuesday, November 3, 2009
The second satellite in ESA's Earth Explorer series - the Soil Moisture and Ocean Salinity (SMOS) mission - and the second demonstration satellite under ESA's Project for Onboard Autonomy (Proba-2) were launched into orbit last night from northern Russia.
SM... | <urn:uuid:9cf0eb5a-a8e6-47c4-9e6b-e0126289f0ab> | 2.765625 | 1,330 | News (Org.) | Science & Tech. | 25.49704 | 95,604,461 |
A View from Emerging Technology from the arXiv
The Amazing Physics of Spinning Graphene
Levitate a flake of graphene and set it spinning; then this wonder material begins to reveal its truly extraordinary properties
Graphene is one of the more extraordinary materials discovered in the last few years. This carbon chicke... | <urn:uuid:fd0627d9-9eae-46df-8f58-5e5f634896ce> | 3.6875 | 451 | Truncated | Science & Tech. | 42.726829 | 95,604,470 |
ASDF is the standard build system for Common Lisp. It is shipped in most Common Lisp implementations. It includes UIOP, “the Utilities for Implementation- and OS- Portability”. You can read its manual and the tutorial and best practices.
Loading a System
The most trivial use of ASDF is by calling
(asdf:make :foobar) (o... | <urn:uuid:49ecc437-e2f0-4dac-8a9d-232dabb49b60> | 2.765625 | 1,075 | Documentation | Software Dev. | 50.128775 | 95,604,476 |
- Gibbs Sampling
One of a number of computational methods collectively known as Markov chain Monte Carlo (MCMC) methods. In simulating a Markov chain, Gibbs sampling can be viewed as a special case of the Metropolis-Hastings algorithm. In statistical practice, the terminology Gibbs sampling most often refers to MCMC co... | <urn:uuid:66f9bc64-6863-4efe-861a-0be45cc7c0a5> | 3.046875 | 539 | Academic Writing | Science & Tech. | 42.757607 | 95,604,480 |
What is less known is how much water occupied the red planet and what happened to it during its geological march to the present. Mostly, evidence has pointed to a period when clay-rich minerals were formed by water, followed by a drier time, when salt-rich, acidic water affected much of the planet. Assuming that happen... | <urn:uuid:925b5c6b-41f8-479e-b7a6-0c3f6b98547c> | 4.25 | 1,334 | Content Listing | Science & Tech. | 37.851207 | 95,604,486 |
Series: Alaska Park Science - Volume 17, Issue 1. Migration: On the Move in Alaska
Seasonal Sea Ice and Arctic Migrations of the Beluga Whale
Each spring to early summer, the continental shelves of the Chukchi and Beaufort seas north of Alaska emerge from a cloak of winter sea ice. Such seasonal phases of sea ice break... | <urn:uuid:1e6b5da4-7303-4cff-a14c-94ca33d3996f> | 3.59375 | 3,854 | Knowledge Article | Science & Tech. | 61.945397 | 95,604,488 |
Reynolds, D Poeppel, WJ Nichols. 2013. Your Brain On Nature: Communicating to change behavior: The need to understand neural processing and the effects of nature. 5th International Partners in Flight Conference and Conservation Workshop. August 25 – 28, 2013, Snowbird, Utah.
Traditional Communication Methods
The U.S. F... | <urn:uuid:d7d3b4a9-d6c5-4e37-8606-268258878467> | 2.765625 | 780 | News (Org.) | Science & Tech. | 33.345471 | 95,604,492 |
In recent years horizontal, or lateral, gene transfer has been seen frequently in prokaryotes and also occasionally in eukaryotes. This lateral transfer involves the movement of genetic material between species as opposed to the vertical transfer of genes from parent to progeny. Horizontal transfer has been observed be... | <urn:uuid:fa8e5321-8eb9-4a94-adee-e4ae263562ba> | 3.390625 | 926 | Content Listing | Science & Tech. | 31.329044 | 95,604,496 |
posted by Mike Joseph
A 0.40-kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 2.0 m on a frictionless horizontal surface.
If the cord will break when the tension in it exceeds 75 N, what is the maximum speed the ball can have?
May someone please walk me through this problem step by st... | <urn:uuid:35c3bf8c-d5f4-41c1-aeb6-c5f6ae06ac43> | 2.765625 | 89 | Q&A Forum | Science & Tech. | 83.926786 | 95,604,497 |
|시간 제한||메모리 제한||제출||정답||맞은 사람||정답 비율|
|5 초||512 MB||28||22||18||85.714%|
The kitchen at the Infinite House of Pancakes has just received an order for a stack of Kpancakes! The chef currently has N pancakes available, where N ≥ K. Each pancake is a cylinder, and different pancakes may have different radii and heights.
A... | <urn:uuid:966fa55d-636c-469e-95be-3666e4841604> | 2.546875 | 861 | Tutorial | Science & Tech. | 72.862059 | 95,604,508 |
posted by Robin
A metal, , of atomic weight 96 reacts with fluorine to form a salt that can be represented as . In order to determine and therefore the formula of the salt, a boiling point elevation experiment is performed. A 9.18- sample of the salt is dissolved in 100.0 of water and the boiling point of the solution ... | <urn:uuid:7673e825-78eb-4d03-83bd-62b6b6b20835> | 3.59375 | 91 | Q&A Forum | Science & Tech. | 78.084605 | 95,604,510 |
Program transformation is used in a wide range of applications including compiler construction, optimization, program synthesis, refactoring, software renovation, and reverse engineering. Complex program transformations are achieved through a number of consecutive modifications of a program. Transformation rules define... | <urn:uuid:7733d61f-a4f4-4c58-8acf-21873dabd7f5> | 2.515625 | 168 | Academic Writing | Software Dev. | 14.280843 | 95,604,511 |
Schmidt Fund Awards to Advance Innovations in Drug Therapy and Search for Planets
News Apr 26, 2013
The fund supports concepts with potential for broad impact in the natural sciences and engineering. It was created in 2009 through a $25 million endowment by Google executive chairman Eric Schmidt, a 1976 alumnus and for... | <urn:uuid:05ccc385-46f8-466c-8b66-6f0e16f9f032> | 2.59375 | 1,187 | News Article | Science & Tech. | 22.411459 | 95,604,515 |
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Published on May 23, 2012
OCEAN ACIDIFICATION AN ECOSYSTEM FACING DISSOLUTION
As a large sink, the ocean absorbs carbon dioxide from the atmosphere. But in sea water, the gas reacts to produce carbonic a... | <urn:uuid:de11825d-57ec-46ac-a530-f2dcf8646ecb> | 2.71875 | 115 | Truncated | Science & Tech. | 39.040658 | 95,604,517 |
Solar Energy: Answers to Common Questions
What is the world energy consumption? What amount of solar energy incident on the earth?
Earth as seen from space
The sun produces an enormous amount of energy: about 1.1 x 1020 kW hours every second (1 kW-hour is the energy needed to light a 100-watt bulb for 10 hours). The ou... | <urn:uuid:88c2a4fe-9eb7-493d-9045-4e758ed954cc> | 3.1875 | 4,430 | Knowledge Article | Science & Tech. | 35.933008 | 95,604,521 |
I need help with this question. I just need some steps in figuring it out Im totally lost Recall that mRNA has one start codon and three codons. based on what you know about process of gene expression, hypothesize why it would be benefecial to have only one start codon but three stop codons in this process.© BrainMass ... | <urn:uuid:00d73c51-b9f7-4667-aca9-c6192cfe41ff> | 3.015625 | 313 | Q&A Forum | Science & Tech. | 48.620019 | 95,604,535 |
Collaborative project uncovers the role of a protein in the formation and maintenance of the inner membrane structures of photosynthetic systems
Chloroplasts are the solar cells of plants and green algae. In a process called photosynthesis, light energy is used to produce biochemical energy and the oxygen we breathe. T... | <urn:uuid:965de59c-8414-40d3-b5ce-677b7bc72aeb> | 3.609375 | 1,595 | Knowledge Article | Science & Tech. | 38.133419 | 95,604,542 |
Publisher: Wikipedia 2014
Gamma-ray bursts (GRBs) are flashes of gamma rays associated with extremely energetic explosions that have been observed in distant galaxies. They are the brightest electromagnetic events known to occur in the universe. Bursts can last from ten milliseconds to several minutes.
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Do... | <urn:uuid:b399488f-7086-4579-a9be-0ccc8a6d4055> | 2.5625 | 321 | Content Listing | Science & Tech. | 34.450581 | 95,604,589 |
Ghost particles, otherwise known as neutrinos, are literally everywhere—trillions of them, each with barely any mass at all, are passing through your body right now. But we understand very little about how these particles work. That’s an absolute shame, since they might be key to explaining some of the biggest mysterie... | <urn:uuid:d6ba75f8-ae1f-4be1-a009-0d33c7364ff8> | 3.640625 | 1,743 | News Article | Science & Tech. | 41.783972 | 95,604,630 |
Graphene proves to be source of infinite energy: A revolution in energy
U.S. physicists accidentally discovered that graphene can generate energy with the help of the environment and will become a game changer in energy and bionics in the near future.
The existence of graphene in nature is a phenomenon that became poss... | <urn:uuid:22eba266-2f0a-4669-b5ac-c287084fa28e> | 3.3125 | 1,043 | News Article | Science & Tech. | 32.634437 | 95,604,639 |
Curriculum Subject Areas
→ Middle School
→ Investigations into Mathematics (IM)
Unit 1 - Ratios and Proportional Relationships - Overview
Unit 2 - Rational Number Operations - Overview
Unit 3 - Expressing Geometric Relationships - Overview
Unit 4 - Statistics and Probability - Overview
Unit 5 - The Real Number System -... | <urn:uuid:4b88c139-694b-4793-9471-4fd2cd86566c> | 4.15625 | 138 | Tutorial | Science & Tech. | -21.928913 | 95,604,641 |
Filters: Tags: A1-Wildlife (X)29 results (40ms)
We studied the kill rate by wolves (Canis lupus) after a large-scale wolf removal when populations of wolves, moose (Alces alces), and woodland caribou (Rangifer tarandus caribou) were all increasing. We followed a total of 21 wolf packs for 4 winters, measuring prey sele... | <urn:uuid:2f205723-48a8-4102-b85d-4377fa7c2699> | 2.65625 | 549 | Content Listing | Science & Tech. | 32.629272 | 95,604,650 |
Apr 03, 2017 10:28 AM EDT
International Space Station crew members conducted research on how to improve the growth of crystals on Earth. The data is intended to improve the drug development process for humans all over the world.
These crystals are proteins that play an important role in the human body. They help the bo... | <urn:uuid:2d2edbe9-b8a8-476a-947c-6651f55b9a93> | 3.890625 | 463 | Truncated | Science & Tech. | 37.746754 | 95,604,652 |
There are two known ways that such silica-rich soil – which is 90% pure silicon dioxide – could have formed. Water heated by subsurface volcanic activity, with lots of silica dissolved in it, could have percolated up into the soil, and then as it evaporated left the silica behind.The find has resulted in the area where... | <urn:uuid:de02d6ca-281a-4b68-b1de-cd0065e14bb9> | 4.125 | 241 | News Article | Science & Tech. | 31.7825 | 95,604,662 |
Coronal mass ejection is an exploding bubble of plasma, charged particles, and magnetic fields that expands out into space from the Sun's corona. During this bursting of bubble-shaped solar plasma, the charged particles are sent out at the speed of light. The ejected plasma is composed mainly of protons and electrons, ... | <urn:uuid:2881c081-e00b-40f2-9592-a8f72cba3877> | 3.78125 | 110 | Knowledge Article | Science & Tech. | 39.105 | 95,604,675 |
- Reason why raindrops and spilt coffee splash revealed by University of Warwick research
- New theory uncovers – for first time – what happens in space between liquid drop and surface to cause splash
- Microscopic layer of air – 50 times smaller than a human hair – trapped between liquid and surface can prevent liquid... | <urn:uuid:02d207aa-9d3c-49c7-9c7b-ef13efc9c90b> | 3.515625 | 782 | News (Org.) | Science & Tech. | 31.548765 | 95,604,676 |
What property makes a given material a good conductor? What property makes a given material a good insulator?© BrainMass Inc. brainmass.com July 19, 2018, 1:41 pm ad1c9bdddf
Conductivity is the measure of the ability of a material to transfer electric charges from one point to another under the influence of an external... | <urn:uuid:192d0ef7-3f29-4d96-aac9-01535f055e05> | 3.359375 | 117 | Truncated | Science & Tech. | 52.529134 | 95,604,701 |
Astronomers, including the University of California, Riverside's Bahram Mobasher and his graduate student Hooshang Nayyeri, have discovered that one of the most distant galaxies known is churning out stars at a shockingly high rate. The researchers made the discovery using NASA's Spitzer and Hubble space telescopes. Th... | <urn:uuid:06390bac-6d1e-4b17-a079-36802075f13b> | 3.953125 | 1,591 | Content Listing | Science & Tech. | 42.447291 | 95,604,731 |
Progress in quantum computers and their threat to conventional public key infrastructure is driving new forms of encryption. Quantum Key Distribution (QKD) using entangled photons is a promising approach. A global QKD network can be achieved using satellites equipped with optical links. Despite numerous proposals, actu... | <urn:uuid:290f314b-1b3b-4d52-aebb-c82727dfffcc> | 2.796875 | 402 | Academic Writing | Science & Tech. | 31.131204 | 95,604,733 |
Natural convection of a nanofluid inside a vertical circular enclosure exposed to a non-uniform heat flux
- Habibi Matin Meisam, Vaziri Shadi
- International Communications in Heat and Mass Transfer SCI(E) SCOPUS
- Elsevier in 2016
- Cited Count
In the present study natural convection of Al2O3-water nanofluid inside a ... | <urn:uuid:78266de2-0420-40f2-a839-c5279b812020> | 2.71875 | 730 | Academic Writing | Science & Tech. | 57.547023 | 95,604,737 |
1 Comparative Planetology Mercury, Venus, Earth, Moon, Mars Astronomy 100Comparative PlanetologyMercury, Venus, Earth, Moon, Mars
2 Now: How are planets formed. Why does Earth have water Now: How are planets formed? Why does Earth have water? How do rocks form?Main concepts: solar system formation, comparative planetol... | <urn:uuid:8c0db239-ab3b-4343-84d7-62b27cbd81d2> | 3.65625 | 512 | Content Listing | Science & Tech. | 37.949449 | 95,604,744 |
Washington: Scientists have finally isolated magnon drag from other thermoelectric effects after a 50-year quest.
As electrons move past atoms in a solid, their charge distorts the nearby lattice and can create a wave. Reciprocally, a wave in the lattice affects the electrons motion, in analogy to a wave in the sea tha... | <urn:uuid:75a24353-3a0e-46e1-84c4-70b2c4390b3e> | 3.34375 | 481 | News Article | Science & Tech. | 31.106061 | 95,604,756 |
Researchers from Durham University, UK, and the University of St Andrews, looking at grey seal colonies in Scotland, found that some seal mothers are flexible in the parenting style they adopt and 'gamble' on the outcome of their actions, whilst other play it safe and steady.
The study is the first to demonstrate how v... | <urn:uuid:0e99de11-0520-4de0-9140-d63a8bdc155f> | 3.203125 | 1,759 | Content Listing | Science & Tech. | 40.616196 | 95,604,768 |
NASAs Stardust spacecraft marked its 12th anniversary in space on Monday, Feb. 7, with a rocket burn to further refine its path toward a Feb. 14 date with a comet.
Just over two weeks before its flyby of comet Tempel 1, NASAs Stardust spacecraft fired its thrusters to help refine its flight path toward the comet. The S... | <urn:uuid:d666f468-7dd1-4b48-9d61-51666ebea2b2> | 3.203125 | 596 | Content Listing | Science & Tech. | 63.114207 | 95,604,818 |
Researchers from the Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB Prague) built a 2-dimensional organized array of light-driven molecular motors. At the molecular level, they have created a system of regularly spaced microscopic machines rotating when illuminated. The team head... | <urn:uuid:a6605532-848f-4306-84b7-1a0844091a80> | 2.828125 | 261 | News Article | Science & Tech. | 37.311289 | 95,604,878 |
New catalyst upgrades greenhouse gas into renewable hydrocarbons
A new technology from U of T Engineering is taking a substantial step towards enabling manufacturers to create plastics out of two key ingredients: sunshine and pollution.
Today, non-renewable fossil fuels not only provide the raw material from which plas... | <urn:uuid:df2459aa-6f7f-4a6a-9388-7770d9bf49f2> | 3.46875 | 843 | News Article | Science & Tech. | 24.274909 | 95,604,884 |
Scientists Make Plants Work Better by Making Them Bionic
Mar 18, 2014 11:08
Graphene is truly some magical material. So it's no surprise that a team of chemical engineers and biochemists have managed to change how plants work, using that. They made plants work better by embedding carbon nanotubes into the plants' leave... | <urn:uuid:f7712fcb-ab73-4e55-8796-f784c92c180f> | 3.421875 | 434 | Listicle | Science & Tech. | 43.330463 | 95,604,895 |
|Using the GNU Compiler Collection (GCC)|
FSF GCC on Darwin does not create “fat” object files; it will create an object file for the single architecture that it was built to target. Apple's GCC on Darwin does create “fat” files if multiple -arch options are used; it does so by running the compiler or linker multiple t... | <urn:uuid:0fbade97-7c84-488b-b5dc-0043080d4ac8> | 2.71875 | 788 | Documentation | Software Dev. | 43.696044 | 95,604,900 |
New study shows the vulnerability of the basin to future invaders – and calls for regulations to mitigate this threat
The Great Lakes have been invaded by more non-native species than any other freshwater ecosystem in the world. In spite of increasing efforts to stem the tide of invasion threats, the lakes remain vulne... | <urn:uuid:da0f8a6e-765f-47ce-ae80-8c851bcf7e4d> | 3.515625 | 1,731 | Content Listing | Science & Tech. | 37.558357 | 95,604,921 |
When an asteroid the size of a city block zips past the Earth about 29,000 miles per hour on Nov. 8, it will seem like an encounter with an old acquaintance to Univeristy of Arizona astronomer Robert McMillan.
Six years ago, McMillan was taking images of the night sky with an 83-year-old telescope on Kitt Peak searchin... | <urn:uuid:5b12c78b-0cab-4c15-b099-002fd10cac6d> | 3.328125 | 2,004 | Content Listing | Science & Tech. | 45.675771 | 95,604,922 |
Hormonal Tug-of-war Helps Plant Roots Navigate Their Journey Through the Soil
Image Caption: The balanced cross-talk between auxin and cytokinin positions the auxin minimum (indicated by *). This minimum determines the size of a root's meristem by triggering cells to transit from division to elongation. When cytokinin ... | <urn:uuid:940fd16e-fadf-46c8-96eb-5e8f1e9c787b> | 3.78125 | 1,134 | News Article | Science & Tech. | 28.720231 | 95,604,925 |
How can we feed future colonists on Mars? Wrocław scientists are working on this problem by developing a wastewater treatment system. Its purpose is to help obtain water and nutrients for aeroponic plant crops in extraterrestrial colonies.
Knowledge of gladiators is common. Fewer people know that female gladiators also... | <urn:uuid:bb9bd34e-7a65-43d9-87b7-9af7c1647d20> | 2.640625 | 293 | Content Listing | Science & Tech. | 44.880615 | 95,604,929 |
Accurate gamma ray spectrum analysis
The problem of gamma ray spectrum analysis has been is studied. The difficulties encountered by different methods are explained. An empirical method which uses an experimental peak for the analysis of spectrum is developed. This method utilizes the simple algorithm of linear least s... | <urn:uuid:e6ec27c2-d53a-4fb1-a0b9-cd82e697dcae> | 2.59375 | 403 | Academic Writing | Science & Tech. | 70.354727 | 95,604,941 |
Dad needs to improve the edges of the wooden boxes - to be reinforced with metal rails. How many cms of rails will he need if the box has the shape of a prism with the length of the edges 70cm 70cm and 120cm?
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 0 comments:
B... | <urn:uuid:fe6fe1fb-708e-47d4-9750-155283e33f67> | 2.890625 | 666 | Tutorial | Science & Tech. | 76.56561 | 95,604,944 |
These nanodiamonds, which are produced under high-temperature, high-pressure conditions created by cosmic impacts and have been found in meteorites, are concentrated in similarly aged sediments at Murray Springs, Ariz., Bull Creek, Okla., Gainey, Mich., and Topper, S.C., as well as Lake Hind, Manitoba, and Chobot, Albe... | <urn:uuid:ac764b18-40be-4781-a2e2-e51dd58a7e30> | 4.21875 | 1,319 | Content Listing | Science & Tech. | 43.246739 | 95,604,977 |
Nasa says big asteroid to pass safely by Earth on 1 September
Nasa says a large asteroid will pass safely by the Earth on 1 September at a distance of seven million kilometres or 18 Earth-Moon distances
Washington: A large near-Earth asteroid will pass safely by our planet on 1 September, at a distance of seven million... | <urn:uuid:6c07bbd7-d46a-4476-adcc-1fb20f67eabd> | 3.09375 | 587 | Truncated | Science & Tech. | 28.972436 | 95,604,986 |
It could possibly be a groundbreaking yr — within the worst approach attainable.
Usually, when somebody tells you horrible issues are going to occur within the yr forward, it’s not price fretting about. In any case, from local weather change to quickly dwindling biodiversity to, properly, a chocolate crisis, we’ve alre... | <urn:uuid:c11f8d17-fd0a-4c5c-8c59-4041d924841c> | 2.6875 | 742 | Truncated | Science & Tech. | 44.407908 | 95,604,990 |
A rotation is a curler movement of an object around a center of rotation. A 3-D object rotates around an imaginary line called a rotation axis. It this axis is within the body and passes through its center of mass the body will rotate upon itself or spin. A rotation about an external point is called a revolution when i... | <urn:uuid:42f140d1-95e3-4860-a166-8df3af05679b> | 4.0625 | 278 | Knowledge Article | Science & Tech. | 47.490345 | 95,605,013 |
Microscopy & Microtechniques
All You Need to Know About the Schiaparelli Space Probe
Oct 27 2016 Read 2291 Times
It’s no easy feat landing a spacecraft on Mars. As head engineers fronting the European-Russian ExoMars 2016 mission found out when they attempted to make spaceflight history and land the Schiaparelli Space ... | <urn:uuid:ca03e4de-3828-47ba-b021-a394ffc8b5e6> | 3.4375 | 779 | Truncated | Science & Tech. | 44.688746 | 95,605,023 |
A Faster and More Efficient Way to Convert Carbon Dioxide into Fuel
New catalysts turn carbon dioxide into fuels faster and more efficiently.
Reusing carbon dioxide emitted by power plants could reduce fossil-fuel consumption.
Making carbon dioxide by burning hydrocarbons is easy. A pair of novel catalysts recently mad... | <urn:uuid:89c46eb8-780b-4d69-8f85-552fb150283d> | 4.15625 | 533 | Truncated | Science & Tech. | 26.793943 | 95,605,038 |
Original Research ARTICLE
Comparison of Seasonal Cycles of Phytoplankton Chlorophyll, Aerosols, Winds and Sea-Surface Temperature off Somalia
- 1Fishery Resources Assessment Division, Central Marine Fisheries Research Institute, Kochi, India
- 2School of Marine Sciences, Cochin University of Science and Technology, Koc... | <urn:uuid:37cc5239-75a3-4486-b65d-b224a0ff66a6> | 2.546875 | 16,929 | Academic Writing | Science & Tech. | 67.147025 | 95,605,052 |
CHAR and VARCHAR are the datatypes of the MySQL.
This article is to cover similarity and difference of both datatypes. Both are almost same but for some aspects both behave slight different based on condition.
CHAR and VARCHAR are almost same but both are different at the stage of storing and retriving the data from th... | <urn:uuid:43fccdec-067b-47cf-8ab1-7aa4e1c0393e> | 3.65625 | 875 | Personal Blog | Software Dev. | 64.781905 | 95,605,055 |
This post is going to show about editing the hosts file. So first of all what is hosts file?
Hosts file is simple file which maps the host name and IP address. But this mapping is applicable for that machine only.
Location of this file can be vary based on the operating system. You can find full list of all OS with loc... | <urn:uuid:51155a25-c698-4831-b0e2-60a3b4284065> | 2.8125 | 357 | Personal Blog | Software Dev. | 73.958674 | 95,605,056 |
This guide (which is also a Literate Haskell program) describes basic Hakyll metaphors in a way that I would have found useful when first learning Hakyll, using a working example site to illustrate the concepts. The mechanism described in this article are not necessarily the literal implementation Hakyll, but are rathe... | <urn:uuid:afe84cb6-0623-4994-8fb9-5d65f172f22e> | 2.734375 | 2,169 | Documentation | Software Dev. | 45.489047 | 95,605,061 |