Tears reveal some of their deepest secrets to researchers
...all tear film, which is made up of three distinct, microscopic layers. The middle, watery layer what we normally... a collection of irritating symptoms that includes microscopic damage to the front of the eye. The eyes may ache, burn, feel extremely dry or excessively tear. T...UCF scientists' molecular discovery could help drugs target unhealthy cells
...have seen on television nanotechnology that sends microscopic creatures to space or the body to make repairs. That sci-fi reality is years away, but this research is a step in that direction. "Right now the only way we can transport atoms is with instruments," Rahman said. "Being able to control that at a mol...'Speechless' and 'Mute' help break the silence of the leaves
...overed two genes that guide land plants to develop microscopic pores that they can open and close as if each pore was a tiny mouth. Plants wouldn't have been able to move from water to land 400 million years ago if they hadn't evolved this ability, which protects them from losing too much moisture. The leaves a...Scientists discover new life forms in the Arctic Ocean
...e. The researchers have discovered a new group of microscopic organisms, which they have baptized "picobiliphytes": pico because of their extremely small size, measured in millionths of a meter, bili because they contain biliproteins, highly fluorescent substances that transform light into biomass, and phyte me...New group of algae discovered: Picobiliphytes
...ted in the world's oceans where it is dominated by microscopic algae, the so-called phytoplankton. Scientists estimate that up to 90 percent of phytoplanktonic species are currently unidentified. In the present study, scientists used molecular techniques to investigate the smallest members of the plankton, the p...Genetic variation may reduce Alzheimer's risk
...rium will copy the virus. The result looks like a microscopic cigar with the proteins of interest as whiskers on one end, says Dr. Hill. In this case, a library of brain molecules was inserted into the virus' whiskers to find proteins that would stick to beta amyloid. Hemoglobin, found in red blood cells and r...Treatments for urinary infections leave bacteria bald, happy and vulnerable
... bacteria by preventing them from assembling pili, microscopic hairs that both enable the invasion of host cells and allow the bacteria to mount a cooperative defense against the host's immune system. "We're leaving the bacteria bald but healthy and happy," says Jerome S. Pinkner, lab manager for Hultgren. "Rat...News tips from the Journal of Neuroscience
...l Star Wars universe, the Jedi have in their cells microscopic organisms, called midichlorians, which enable them to communicate with the Force." Us humans are stuck with just plain mitochondria. Although not as flashy, these ancient organelles perform essential metabolic functions. This week, Chadrasekaran et a...ACS News Service Weekly PressPac -- Dec. 13, 2006
...' Nano Letters, a monthly journal. Microtubules - microscopic tube-shaped weaves of proteins - serve as roadways inside cells, pathways for delivering neurotransmitters to the tips of nerve cells, positioning chromosomes for cell division and transporting molecules. On micro-TASs, microtubules would be used as...Underground air might cause DNA damage
...,300 Swedes die premature deaths from inhaling the microscopic particles of coal, asphalt, iron and other materials that pollute the citys air. These particles, which are the result of incomplete combustion, road surface attrition, etc. could be reduced if the right steps were taken; the problem is that it is no......ad seeded the outside of the progenitor cells with microscopic markers, quantum dot nanocrystals, and watched as the dots were taken into the cells and delivered specifically to the uropod domain at the point of contact. Interestingly, time-lapse microscopy detected transfer of the quantum dots from the progenit...Leibniz Prize winners 2007 announced
...low-dimensional systems and in nanostructures. His microscopic explanation of special exchange interactions in ferromagnetic layered systems (interlayer exchange coupling) is already a staple of modern textbooks on solid state physics. Bruno analysed several magnetic effects in quantum mechanics (Casimir effe...Extreme life, marine style highlights 2006 ocean census
...assembling the best-ever video of protists (mostly microscopic organisms that are neither animals, plants, or fun...d to the registry, which includes marine life from microscopic phytoplankton up to right whales, and from seasonal migrants to year-round residents. The database ...Global warming is reducing ocean life, increasing atmospheric carbon dioxide, say scientists
...based upon the growth of billions upon billions of microscopic plants. New satellite data show that ocean warming... of greenhouse gases like carbon dioxide. These microscopic plants are predicted to grow even slower in the warmer oceans of the future. This in turn will reduc...Global warming will reduce ocean productivity, marine life
...ten exceeded 30 percent. Despite their microscopic size, ocean phytoplankton are responsible for about half of the photosynthesis on Earth, a process that removes carbon dioxide from the atmosphere and converts it into organic carbon to fuel nearly every ocean ecosystem. Compared to terrestrial land ...NIH selects Purdue to use phi29 DNA packaging motor for National Nanomedicine Development Center
...over five years to study the use of a nanomotor, a microscopic biological machine, for potential use in the diagnosis and treatment of diseases such as cancer, AIDS, hepatitis B and influenza. The team will take the first steps in research that could lead to using nanomotors to package and deliver therapeutic ...Living view in animals shows how cells decide to make proteins
...duce multiple proteins. In alternative splicing, microscopic "scissors" in a gene chop the genetic material RNA into bits called "exons" and then reassemble the bits in a different order to form a new RNA molecule. In the process, some of the exons are retained while others are excluded. The exons that are ret...Study suggests morning pollution pall for Manchester commuters
... They include gases like nitrogen dioxide but also microscopic particles. These particles can be things like fine oily mists from vehicle exhausts and flecks of dust from tyres and brakes. Studies have shown that they have the greatest effect on our health. Analysis of the data is at an early stage and its goi...Proteins anchor memories in our brain
... the end or "axon" of the upstream nerve cell, the microscopic gap between nerve cells, and a mushroom-shaped "dendritic spine," which is part of the downstream nerve cell. What we learn and hold in our memory is believed to be distributed across many synapses, Bressloff says. Some memories, such as a person'...Movies reveal that the process of insulating nerves is surprisingly dynamic
...anes, which wrap the nerve fibers like millions of microscopic pieces of electrician's tape, can cover the axons completely and uniformly. The wrapping process takes place near the end of fetal development and actually continues for some time after birth. In order to study this process, Appel and his research ...