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No matter how carefully you plan your goals they will never be more that pipe dreams unless you pursue them with gusto. --- W. Clement Stone
Saturday, February 8, 2014
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ScienceDaily: Top Science News
ScienceDaily: Top Science News |
- Social or stinky? New study reveals how animal defenses evolve
- Europe's oldest footprints uncovered on English coast
- 'Steak-knife' teeth reveal ecology of oldest land predators
- Opening 'the X-files' helped researchers to understand why women and men differ in height
- Fish biomass in the ocean may be 10 times higher than estimated: Stock of mesopelagic fish changes from 1,000 to 10,000 million tons
- Click chemistry could provide total chemical DNA synthesis, study shows
- Toxin in seafood causes kidney damage in mice at levels considered safe for consumption
- Substance in photosynthesis was in play in ancient, methane-producing microbes
- Study shows yogurt consumption reduces the risk of type 2 diabetes
Social or stinky? New study reveals how animal defenses evolve Posted: 07 Feb 2014 12:13 PM PST Some animals are "eww" while others are "aww." Why do some animals use stinking secretions for defense, while others are social? In a new study, researchers found that noxious spraying was favored by animals that were nocturnal and mostly at risk from other animals, while sociality was favored by animals that were active during the day and potentially vulnerable to birds of prey. |
Europe's oldest footprints uncovered on English coast Posted: 07 Feb 2014 10:45 AM PST The earliest human footprints outside of Africa have been uncovered, on the English coast, by a team of scientists. Their discovery offers researchers an insight into the migration of pre-historic people hundreds of thousands of years ago when Britain was linked by land to continental Europe. |
'Steak-knife' teeth reveal ecology of oldest land predators Posted: 07 Feb 2014 05:39 AM PST The first top predators to walk on land were not afraid to bite off more than they could chew, a study has found. Researchers suggest that Dimetrodon, a carnivore that walked on land between 298 million and 272 million years ago, was the first terrestrial vertebrate to develop serrated ziphodont teeth. |
Opening 'the X-files' helped researchers to understand why women and men differ in height Posted: 07 Feb 2014 05:38 AM PST Given its unique nature, the X chromosome has often been neglected when performing large-scale genetic studies. Because women have two copies of this chromosome and men only one, identifying genetic associations with X chromosomal genes can be particularly valuable in helping us to understand why some characteristics differ between sexes. Researchers have now identified novel X-chromosomal genetic variants that influence human height. |
Posted: 07 Feb 2014 05:38 AM PST With a stock estimated at 1,000 million tons so far, mesopelagic fish dominate the total biomass of fish in the ocean. However, scientists have found that their abundance could be at least 10 times higher. The results are based on the acoustic observations conducted during the circumnavigation of the Malaspina Expedition. |
Click chemistry could provide total chemical DNA synthesis, study shows Posted: 07 Feb 2014 05:38 AM PST An interdisciplinary study has shown for the first time that 'click chemistry' can be used to assemble DNA that is functional in human cells, which paves the way for a purely chemical method for gene synthesis. Human cells can still read through strands of DNA correctly despite being stitched together using a linker not found in nature. |
Toxin in seafood causes kidney damage in mice at levels considered safe for consumption Posted: 07 Feb 2014 05:36 AM PST Domoic acid accumulates in seafood and is toxic to the brain. Research indicates that the toxin damages kidneys at concentrations that are 100 times lower than what causes neurological effects. |
Substance in photosynthesis was in play in ancient, methane-producing microbes Posted: 07 Feb 2014 05:36 AM PST A process that turns on photosynthesis in plants likely developed on Earth in ancient microbes 2.5 billion years ago, long before oxygen became available, according to new research. |
Study shows yogurt consumption reduces the risk of type 2 diabetes Posted: 05 Feb 2014 03:47 PM PST New research shows that higher consumption of yogurt, compared with no consumption, can reduce the risk of new-onset type 2 diabetes by 28 percent. Scientists found that in fact higher consumption of low-fat fermented dairy products, which include all yogurt varieties and some low-fat cheeses, also reduced the relative risk of diabetes by 24 percent overall. |
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ScienceDaily: Top Technology News
ScienceDaily: Top Technology News |
- New application of physics tools used in biology
- Computer models help decode cells that sense light without seeing
- Bottom-up insight into crowd dynamics: Preparing for stampedes, mass evacuations
- Ranking disease-causal mutations within whole genome sequences
- Social media, self-esteem and suicide: Nations with more corruption demonstrate more social media, less suicide
- Efficiently harnessing low frequency vibrations as infinite power source for miniature electronic devices
- Click chemistry could provide total chemical DNA synthesis, study shows
- Large thermoelectric power from a combination of magnets and superconductors
- Synthesized sponge chemical shows promise for cancer
- United States lead in science and technology shrinking
- Nanoparticle pinpoints blood vessel plaques
- Excrement collected worldwide shows co-evolution of herbivores, their gut microbes
- Scientists use 'voting' and 'penalties' to overcome errors in quantum optimization
- Virtual-reality 'assisted' flying? Helping airline passengers experience comfort, space and altered self-perception
- First leadless pacemaker in U.S. implanted into patient
New application of physics tools used in biology Posted: 07 Feb 2014 10:30 AM PST A physicist and his colleagues have found a new application for the tools and mathematics typically used in physics to help solve problems in biology. |
Computer models help decode cells that sense light without seeing Posted: 07 Feb 2014 10:30 AM PST Researchers have found that the melanopsin pigment in the retina is potentially more sensitive to light than its more famous counterpart, rhodopsin, the pigment that allows for night vision. Scientists have leveraged supercomputers to study melanopsin, a retina pigment capable of sensing environmental light changes, informing the nervous system and synchronizing it with the day/night rhythm. |
Bottom-up insight into crowd dynamics: Preparing for stampedes, mass evacuations Posted: 07 Feb 2014 08:41 AM PST Stampedes unfortunately occur on too regular a basis. Previously, physicists developed numerous models of crowd evacuation dynamics. Now, a new study outlines a procedure for quantitatively comparing different crowd models, which also helps to compare these models with real-world data. In a new paper, researchers have demonstrated that these crowd evacuation dynamics models are a viable decision-making tool in safety preparation and planning concerning real-world human crowds. |
Ranking disease-causal mutations within whole genome sequences Posted: 07 Feb 2014 08:41 AM PST Researchers have developed a new method for organizing and prioritizing genetic data. The Combined Annotation–Dependent Depletion method will assist scientists in their search for disease-causing mutation events in human genomes. |
Posted: 07 Feb 2014 06:40 AM PST In nations where corruption is rife, it seems that citizens these days find an escape from the everyday problems that trickle down to their lives by using online social media more than those elsewhere. Research also suggests that these two factors -- more corruption, more social networking -- also correlate with lower suicide rates. |
Posted: 07 Feb 2014 06:40 AM PST Researchers have conceptualized a novel strategy to efficiently harness low frequency vibrations as infinite power source for miniature electronic devices. |
Click chemistry could provide total chemical DNA synthesis, study shows Posted: 07 Feb 2014 05:38 AM PST An interdisciplinary study has shown for the first time that 'click chemistry' can be used to assemble DNA that is functional in human cells, which paves the way for a purely chemical method for gene synthesis. Human cells can still read through strands of DNA correctly despite being stitched together using a linker not found in nature. |
Large thermoelectric power from a combination of magnets and superconductors Posted: 07 Feb 2014 05:37 AM PST Thermoelectric devices can cool materials by passing currents, or convert temperature differences into electric power. However, especially metallic structures have a very poor thermoelectric performance, and therefore most thermoelectrics are made of semiconductors. Now researchers have shown how a proper combination of magnetic metals and superconductors could allow reaching very strong thermoelectric conversion efficiency. |
Synthesized sponge chemical shows promise for cancer Posted: 07 Feb 2014 05:37 AM PST A promising compound for cancer treatment has been synthesized in a laboratory by a PhD student. |
United States lead in science and technology shrinking Posted: 06 Feb 2014 01:45 PM PST The United States' predominance in science and technology eroded further during the last decade, as several Asian nations -- particularly China and South Korea -- rapidly increased their innovation capacities. |
Nanoparticle pinpoints blood vessel plaques Posted: 06 Feb 2014 01:45 PM PST A team of researchers has developed a multifunctional nanoparticle that enables magnetic resonance imaging to pinpoint blood vessel plaques caused by atherosclerosis. The technology is a step toward creating a non-invasive method of identifying plaques vulnerable to rupture -- the cause of heart attack and stroke -- in time for treatment. |
Excrement collected worldwide shows co-evolution of herbivores, their gut microbes Posted: 06 Feb 2014 11:20 AM PST An extensive study on excrement and rumen fluids in plant-eating mammals from all over the whole world shows that the ciliates in their guts have evolved in parallel with them. This is the result of a five-year research project performed by evolution biologists, microbiologists and computer scientists. |
Scientists use 'voting' and 'penalties' to overcome errors in quantum optimization Posted: 06 Feb 2014 10:39 AM PST Seeking a solution to decoherence -- the "noise" that prevents quantum processors from functioning properly -- scientists have developed a strategy of linking quantum bits together into voting blocks, a strategy that significantly boosts their accuracy. In a new study, the team found that their method results in at least a five-fold increase in the probability of reaching the correct answer when the processor solves the largest problems tested by the researcher, involving hundreds of qubits. |
Posted: 06 Feb 2014 08:13 AM PST Does this sound familiar? After a long check-in procedure you are finally sitting in your assigned seat on the aircraft. But the seat is too narrow, the foot-well is too tight, you have neighbors using both armrests, and the family with small children in the row in front increases the noise level considerably. If only there was a way to hide the environment or perhaps even create an illusion of comfort and relaxation! This illusion could soon become a reality, leading to a significant improvement of airline passenger comfort. |
First leadless pacemaker in U.S. implanted into patient Posted: 06 Feb 2014 07:07 AM PST This February during American Heart Month, a surgeon implanted the United States' first miniature-sized, leadless cardiac pacemaker directly inside a patient's heart without surgery. |
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