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Tag: "visible" at biology news

Enzyme, lost in most mammals, is shown to protect against UV-induced skin cancer

..., which removeeither CPD or 6-4PP lesions by using visible light as an energy source,expression of the transgenes allowed rapid photolyase-mediated repairof these lesions. The researchers found that transgenic mice bearingthe CPD photolyase transgene, in contrast to mice bearing the 6-4PPphotolyase transgene...

Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer

...ic lineages ?because the amoeba lacked many of the visible traits of eukaryotic cells (such as endoplasmic reticulum, golgi apparatus and mitochondria) and also shared some bacteria-like traits. While the Nature study catalogs a reduced genome (sometimes characteristic of an organism's transition to a paras...

Color-blind method opens new doors in DNA sequencing

...es the researchers to take advantage of the entire visible spectrum, eliminating the problem of cross-talk between dyes, said Metzker. Because there are four lasers, scientists can manipulate the system so that each dye gives the same intensity of fluorescent signal, eliminating the need for further softwar...

Needling Chromosomes Reveals Cell Division Secret

...out to use micromanipulation todistinguish between visible separateness and physical separateness."To study chromatid adhesion, Paliulis mastered the high art ofmanipulating two infinitesimal glass needles to impale each of twosister chromatids in cultured grasshopper cells at the appropriate timein cell div...

Taking Aim With Nanoparticle PEBBLEs

...fected. Including molecules that make PEBBLEs more visible in MRI images provides an added bonus, helping to show where tumors are located and how they respond to treatment. In recent experiments with a small number of rats that had a type of brain cancer called 9L-gliosarcoma, PEBBLE-based treatment signif...

ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

...tion in color within a species ?at least in colors visible to us. Parrots in general may not be using color in the classic cases of mate choice or competitive ability," he said. "Exactly why they are so uniformly colored remains an interesting mystery to us ?one we want to investigate." "There is a sea of c...

Transport System Smuggles Medicines Into Brain

...tion in color within a species ?at least in colors visible to us. Parrots in general may not be using color in the classic cases of mate choice or competitive ability," he said. "Exactly why they are so uniformly colored remains an interesting mystery to us ?one we want to investigate." "There is a sea of c...

Open microfluidic and nanofluidic systems

...contact lines into account. Such a contact line is visible in the upper right image in Figure 1. In such a situation, the contact angle is not determined by the classical Young equation but can vary over a wide range of values. A surprising prediction of the new theory is that the experimentally observed po...

Same mutation aided evolution in many fish species, Stanford study finds

...lution turned to the same genetic switch to work a visible change in the fish. However, in the fin study the group wasn't able to pinpoint the exact genetic alteration. The group continues to wade out into nature, collecting additional stickleback species from around the world that can reveal whether partic...

Scientists discover unique microbe in California's largest lake

...e thatuse a combination of near-infrared light and visible light to produceoxygen by photosynthesis."While th..."Untilrecently, we thought it was necessary to use visible light to produceoxygen through photosynthesis, but now we know there are at least threeorganisms tha...

Devising Nano Vision for an Optical Microscope

...10 nanometers—a tiny fraction of the wavelength of visible light. In a preliminary test of the embryonic tec...scale dimensions. The wavelengths of light in the visible part of the spectrum greatly exceed nanoscale dimensions. Consequently, the resolution of convention...

World's largest rainforest drying experiment completes first phase

...their extensive root systems, avoiding most of the visible symptoms of drought stress. By the end of the five-year period of exclusion, many trees in the forest were drawing in water from more than 40 feet deep in the soil. Second, it was anticipated that when the trees ran out of water in the soil, they wo...

Pulsating ultrasound enhances gene therapy for tumors

...green protein found in deep-sea invertebrates--was visible in all sections of the tumors exposed to pulsed-HIFU. Tumors not targeted with pulsed-HIFU showed negligible signs of the gene. An analysis showed reporter gene levels to be nine times higher in tumors treated with pulsed-HIFU compared with tumors l...

Nanoparticles offer new hope for detection and treatment

...icles also contain an imaging agent, you can get a visible signal that allows you to measure how much medication got to the tumor," Lanza says. "You would know the same day you treated the patient and if the drug was at a therapeutic level." Using nanoparticles, drug doses could be much smaller than doses t...

Revolutionary nanotechnology illuminates brain cells at work

...form upon binding with the chemical, which is then visible via a process known as fluorescence resonance energy transfer, or FRET. In a new study, the nanosensors were introduced into nerve cells to measure the release of the neurotransmitter glutamate--the major brain chemical that increases nerve-cell acti...

Defenseless plants arm themselves with metals

...arting with things we can measure, which are these visible traits, and then we work backwards." A question that has long stymied Salt and his colleagues centers on the origins of this trait. While essential as micronutrients, metals are toxic in high levels. Most plants have mechanisms that keep metals in t...

Scientists journey to southern Africa to unravel the secret world of elephant communication

... a large animal produces a unique signature that's visible on a spectrogram, making it easy to tell if an elephant, rhino or giraffe has walked by. "We think we can tell the difference between elephants and other species based on the spectral content of their footstep as they pass by a geophone array," says...

Grizzlies set to invade high Arctic?

...gland notes that the grizzly bear find is a highly visible example of important changes occurring in the Arctic. "The Arctic is very large and diverse, and this complex but exciting environment is just coming into focus for Canadians in general. It's now a mainstream issue." ...

Findings have implications for tracking disease, drugs at the molecular level

...Chen, coaxed the particles into strong emission of visible light using a technique called multiphoton absorption induced luminescence (MAIL). The most efficient gold nanoparticles could be observed at laser intensities lower than those commonly used for multiphoton imaging, in which specific tissues or cell...

Secret of smallpox's success may lead to bioterror cure

...ral gene that allows pox viruses to hide. The more visible the vaccinia virus is to the immune system, the stronger the immune response should be and the better the body should be able to fight off a smallpox infection. Over the past 15 years, Jacobs has developed a variety of mutant vaccinia viruses that l...

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(Date:7/25/2014)... PITTSBURGH -- The routine use of a molecular ... likelihood of performing the correct initial surgery for ... from the University of Pittsburgh Cancer Institute (UPCI), ... the UPMC/UPCI Multidisciplinary Thyroid Center and other diagnostic ... the correct initial surgery by 30 percent, according ...
(Date:7/24/2014)... New York, NY - July 24, 2014 -- Keryx ... results from the long-term, randomized, active control Phase 3 ... ferric iron-based phosphate binder, for the treatment of hyperphosphatemia ... The PERFECTED study (PhosphatE binding and iRon delivery with ... the Journal of the American Society of Nephrology ...
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Breaking Biology News(10 mins):Test increases odds of correct surgery for thyroid cancer patients 2Test increases odds of correct surgery for thyroid cancer patients 3Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 4
(Date:7/25/2014)... News) -- The human brain can preserve oxygen to ... study finds. Although dehydration significantly reduces blood ... that the brain compensates by increasing the amount of ... has helped us understand a lot more about how ... conditions," study first author Steven Trangmar, a researcher at ...
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(Date:7/25/2014)... July 25, 2014 Drexel University College ... Weber, MD, MS, FACP, has been appointed vice dean for ... join Drexel from The Commonwealth Medical College, where she is ... for clinical affairs, and professor of medicine. , As ... Medical College, Weber had a major role in many aspects ...
Breaking Medicine News(10 mins):Health News:Human Brain Has Coping Mechanism for Dehydration 2Health News:Art of Facial Surgery Responds to Demand for Facial Plastic Surgery Increase Due to the Popularity of Selfies 2Health News:Art of Facial Surgery Responds to Demand for Facial Plastic Surgery Increase Due to the Popularity of Selfies 3Health News:Full Explanation Reduces Seniors’ Worries about Lung Cancer Screening 2Health News:Full Explanation Reduces Seniors’ Worries about Lung Cancer Screening 3Health News:Full Explanation Reduces Seniors’ Worries about Lung Cancer Screening 4Health News:Full Explanation Reduces Seniors’ Worries about Lung Cancer Screening 5Health News:Slow walking speed and memory complaints can predict dementia 2Health News:Slow walking speed and memory complaints can predict dementia 3Health News:Slow walking speed and memory complaints can predict dementia 4Health News:Valerie D. Weber, MD, Appointed Vice Dean for Education at Drexel University College of Medicine 2Health News:Valerie D. Weber, MD, Appointed Vice Dean for Education at Drexel University College of Medicine 3
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