Relationships where two organisms depend on each other, known as symbiosis, evoke images of partnership and cooperation. But a new study in Nature Ecology and Evolution shows that, when it comes to certain microorganisms, symbiotic partners are actually being held 'hostag.'
We have developed high-speed frequency modulation AFM (FM-AFM) and enabled atomic-resolution imaging in liquid at ~1 s/frame. With this AFM, we have obtained images revealing the transition region is formed along the step edges. Our simulations suggest the transition region be a Ca(OH)2 monolayer formed as an intermediate state. Thus, our understanding of the calcite dissolution in water is much improved. This FM-AFM will be applicable to various studies on solid-liquid interface dynamic processes.
A high school student's project that was developed at Rice University and won national and international awards removes more than 99 percent of heavy metal toxins from water. A new paper demonstrates its potential for water remediation in developing nations around the world.
Analysis of caves in Israel deserts brings to light the ancient groundwater circulation of northwestern Arabia. The cave distribution, morphology, and deposit evidence indicates that they formed through dissolution by rising groundwater. This water originated as rainwater flowing from highlands around the present Red Sea, infiltrated through sandstone, and rose again through deep faults in Israel, forming maze, or network caves.
High-speed winds during a thunderstorm may cause trees around an electric grid to crash into the distribution system feeders causing an outage in that area. Currently, most utility companies diminish such accidents by scheduling regular tree-trimming operations. This effort is costly and is based on a rotational approach to different service areas, which may take months and sometimes years before all trees are trimmed.
NASA's Terra satellite passed over Tropical Depression Kulap as the storm was winding down in the Northwestern Pacific Ocean. Strong wind shear was affecting the storm as a result of nearby Typhoon Noru.
Tropical Depression Greg appears as a ghostly swirl of low clouds on satellite imagery from NOAA's GOES-West satellite on July 27.
A single, robust catalyst that splits water into hydrogen and oxygen has been developed with Earth-abundant materials that approach the efficiency of more expensive platinum, according to Rice and University of Houston scientists.
NASA's Aqua satellite provided a near-infrared look at Typhoon Noru as it continued its western track at sea, far to the southeast of Japan.
Tropical Storm Nesat formed early on July 26 just east of the Philippines and NASA's Aqua satellite passed overhead gathering temperature data to determine the location of the most powerful storms. Imagery showed strong storms from Nesat's western side were affecting the central Philippines.