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Tag: "generates" at biology news

Salty oceans provide early warning for climate change

...ean along a deep pressure wave. “The surge of salt generates a pressure gradient in the ocean that sends energy to the north without water actually being transported,” explains Zahn. Regardless of whether ocean circulation speeds up or slows down it causes significant climate change, altering the hydrologi...

In nature, proteins sweep up nanoparticles

...vanced Light Source, a national user facility that generates intense light for scientific research. Using an imaging tool called Fourier-transform infrared spectroscopy, the team analyzed the zinc sulfide aggregates and detected the characteristic signal of proteins. Next, to further zero in on this intrigu...

New vaccine prevents CMV infection and disease in mice

...bling it to fight the virus.” The mouse vaccine generates an immune response that protects against both infe...uly issue of Journal of Virology. “Our approach generates an immune response that is different from the normal response to the virus, and we hope to have foun...

MIT's ocean model captures diversity of underwater forests

... random types of phytoplankton. The model randomly generates the single-celled plants, which differ primarily in their size, and in their sensitivity to light, temperature and nutrient availability, then allows the ocean to self-select those most fit for survival in any particular area. What emerged after t...

Sandia researchers take new approach to studying how cells respond to pathogens

...els from experimental data and predictive modeling generates hypotheses to be tested next. Singh says using an integrated microfluidic platform sets Sandia apart from the rest of the world. Sandia researchers have been working in the area of microfluidics -- the science of designing, manufacturing, and form...

Soft-cell approach cuts animal tests

...he use of human cells (as opposed to animal cells) generates data representative of direct human chemical exposure. A number of human cell types such as lung, skin and liver can be used to represent target organs that are more likely to be significantly exposed or affected by air pollutants. As the respira...

Penn study on olfactory nerve cells shows why we smell better when we sniff

...igger a secondary molecular messenger cascade that generates electrical impulses to the brain, signaling that it is smelling something. The group discovered that chemical and mechanical stimuli both resulted in the same messenger molecule, cAMP, which acts like a gatekeeper of reactions in the olfactory neuro...

Study shows hope for early diagnosis of Alzheimer's

...uency tone, also known as the “oddball?tone, which generates ERPs in the EEG. Generally, in the ERP of a person without Alzheimer’s, that response registers a peak, the P300, about 300 milliseconds after the “oddball?tone. People with dementia, particularly Alzheimer’s, may exhibit that peak much later than 30...

Researchers from the UGR use a bacterium to obtain biopreservatives from food

...cted mutagenesis on the as-48A gene, the one which generates enterocin AS-48", the researcher from Granada pointed out, "and we have studied the role of seven amino acids that could be involved in biological activity and in the hydrophobic nature and thermodynamic stability of the molecule. We made this study ...

Researchers create artificial enzyme that mimics the body's internal engine

...a crucial component of the cellular machinery that generates energy in our body. With such impressive credentia...hat is transformed into water and, in the process, generates energy in the form of ATP and heat. CcO is the last electron carrier in the transport chain. It r...

Bats prey on nocturnally migrating songbirds

...icism. As usual, a new major and amazing discovery generates a lot of sceptical reactions, which calls for gathering further, indisputable scientific evidence. Indeed, presence of feathers in diet was no ultimate demonstration of a bird-based diet, although indicative. New innovative approaches were thus neces...

Researchers find hepatitis A and hepatitis C attack same protein to block immune defenses

...cation. Recent research has shown that hepatitis C generates a protein called NS3/4A that chops up MAVS, interfering with immune signaling and possibly providing the cover the virus needs to survive so long in the liver. Now, Lemon and his group have demonstrated that hepatitis A does the same thing with a dif...

How genetic malfunction causes a form of retardation

...s genesis of neurons and inhibits the pathway that generates glial cells. And in experiments with both cell cultures and mouse embryos, they found that the same kind of mutation in SHP-2 that can be found in NS patients disrupts the neuron-glial balance by further promoting the formation of neurons and inhibit...

Uganda's mountain gorillas increase in number

...me to a thriving gorilla ecotourism program, which generates much needed foreign revenue for Uganda annually by bringing paying travelers into the company of mountain gorillas. Four of the 30 family groups are habituated for tourism, or conditioned to tolerate the presence of humans for short durations. Th...

Honeydew honeys are better antioxidants than nectar honeys

...oneybees can collect nectar from flowers, and this generates nectar honeys. Secondly they can collect fluids th...ve been visited by a plant-sucking insect and this generates honeydew honeys. “Honey is a natural source of antioxidants, and among honeys, honeydew honey is ...

Satellites shed light on global warming

...(MERIS). Envisat carries 10 instruments aboard and generates data on Earth’s land, oceans, ice and atmosphere. By comparing and contrasting information on ocean colour, surface temperature and sea level, scientists are exploring the many subtle ways in which these near-invisible waves are capable of affect...

MIT's ocean model precisely mimics microbes' life cycles

... random types of phytoplankton. The model randomly generates the single-celled plants, which differ primarily in their size, and in their sensitivity to light, temperature and nutrient availability, then allows the ocean to self-select those most fit for survival in any particular area. What emerged after t...

Groundbreaking Canadian asthma study

...ys with Bronchial Thermoplasty (BT). The BT device generates radio frequency/thermal energy and reduces areas of underlying smooth muscle in the airways. The procedure is completed in three treatment sessions, each lasting less than one hour, and spaced apart by about three weeks. The procedure, like many othe...

How does your brain tell time?

... theory assumes that a clock-like mechanism ?which generates and counts regular fixed movements -- underlies timing in the brain. In contrast, Buonomano suggests a physical model that operates without using a clock. He offers an analogy to explain how it works. "If you toss a pebble into a lake," he exp...

Preliminary study finds holographic imaging system promising for cancer treatment planning

...Actuality Systems "PerspectaRAD" Spatial 3D system generates true 3D imagery with a full 360-degree field of view. Using high-speed electronics, a CT scan is projected onto a screen spinning inside a 24-inch transparent dome. The screen, spinning at over 900 rotations per minute, forms a detailed, holographic...

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