While study has long been conducted on vertebrates with sight-sensory systems involving a lens, retina and nervous system, new research reported by the University of Cincinnati and supported by the National Science Foundation is the first to examine how the complex eye system of an invertebrate - the Sunburst Diving Beetle - coordinates the development of its components. Despite the complexity of their eyes, including a bifocal lens, extremely rapid eye growth of the Sunburst Diving Beetle occurs during the transitions between larval stages.
Heavens
Movies such as 1987's "Predator," in which an alien who sees in the infrared hunts down Arnold Schwarzenegger and his team, introduced a generation of sci-fi fans to thermal imaging. Since then, heat-sensing devices have found many real-word applications but have remained relatively expensive and rigid. But a new development featuring graphene, reported in ACS' journal Nano Letters, could lead to a flexible, transparent and low-cost infrared vision system.
About $5 billion worth of unused prescription drugs get flushed down toilets, tossed in the trash or left in medicine cabinets across the U.S. each year. These practices can contribute to a host of problems, including water pollution and drug abuse. To address these issues, some local governments are starting to intervene, according to an article in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society.
Installed on APEX earlier this year, SEPIA [1] is sensitive to light with wavelengths in the range 1.4-1.8 millimetres [2]. The exceptional observing conditions on the extremely dry Chajnantor Plateau in northern Chile mean that, although this light is blocked by water vapour in the atmosphere at most places on Earth, SEPIA is still able to detect the faint signals coming from space.
Augmented reality is the enhancement of human perception through overlaying technologies that can expand, annotate and even record the user's moment-to-moment experience.
Those designing coming augmented reality systems should make them adaptable to change, resistant to hacking and responsive to the needs of diverse users, according to a white paper by an interdisciplinary group of researchers at the University of Washington's Tech Policy Lab.
WASHINGTON, D.C., November 3 - When a male Asian Citrus Psyllid is looking for a mate, he situates himself on a twig, buzzes his wings to send vibrations along adjacent leaves and branches, and listens for a female's response call. If the call comes, he travels in her direction, the abbreviated insect version of courtship ensues, and two to seven weeks later, scores of psyllids nymphs emerge from their eggs, feed on phloem sap, and mature into adults who head out into the world, ravaging untold numbers of citrus trees in the process.
Augmented reality is the enhancement of human perception through overlaying technologies that can expand, annotate and even record the user's moment-to-moment experience.
Those designing coming augmented reality systems should make them adaptable to change, resistant to hacking and responsive to the needs of diverse users, according to a white paper by an interdisciplinary group of researchers at the University of Washington's Tech Policy Lab.
Tropical Cyclone Chapala made landfall in Yemen early on November 3 (Eastern Standard Time) and made history as the first land-falling tropical storm in 30 years of record-keeping. As Chapala made landfall NASA's Aqua satellite passed overhead twice.
Stem cells have two important capabilities: they can develop into a wide range of cell types and simultaneously renew themselves, creating fresh stem cells. Using a model of the blood forming (hematopoietic) system, researchers at the Technical University of Munich (TUM) have now been able to precisely determine, which signaling pathways play an essential role in the self-renewal of blood stem cells. A particularly decisive role in this process is the interactive communication with surrounding tissue cells in the bone marrow.
Weather patterns in a mysterious world beyond our solar system have been revealed for the first time, a study suggests.
Layers of clouds, made up of hot dust and droplets of molten iron, have been detected on a planet-like object found 75 light years from Earth, researchers say.
Findings from the study could improve scientists' ability to find out if conditions in far-off planets are capable of sustaining life, the team of astronomers suggests.
EEAST LANSING, Mich. - Stealthy diseases sometimes trick plants by hijacking their defense signaling system, which issues an alarm that diverts plant resources for the wrong attack and allows the enemy pathogens to easily overrun plants.
The huge West Antarctic ice sheet would collapse completely if the comparatively small Amundsen Basin is destabilized, scientists of the Potsdam Institute for Climate Impact Research find. A full discharge of ice into the ocean is calculated to yield about 3 meters of sea-level rise. Recent studies indicated that this area of the ice continent is already losing stability, making it the first element in the climate system about to tip. The new publication for the first time shows the inevitable consequence of such an event.
Deaths among white U.S. men and women aged 45-54 rose significantly between 1999 and 2013, according to a new analysis. This change reversed decades of progress in mortality and was unique to non-Hispanic whites in the United States. In parallel, morbidity rates increased as well. The study found self-reported declines in health, mental health, and abilities to conduct activities of daily living, accompanied by increases in reports of chronic pain, inability to work, and deterioration of liver function among this group.
DURHAM, N.C. -- When restoring coastal wetlands, it's long been common practice to leave space between new plants to prevent overcrowding and reduce competition for nutrients and sunlight
It turns out, that's likely all wrong.
NASA's Aqua satellite and the GPM satellite passed over Cyclone Chapala as it was approaching landfall in central Yemen on November 2. The Global Precipitation Measurement Mission or GPM core satellite analyzed the heavy rain falling in the major hurricane.