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Tag: "spotted" at biology news

Spider Venom Could Yield Eco-Friendly Insecticides

... diseases, such as Lyme disease and Rocky Mountain spotted fever (ticks) and dengue and yellow fever (mosquitoes). "One could envision specifically targeting mosquito larvae that carry human diseases such as West Nile or malaria, while leaving other insects and vertebrates unharmed," says King. ...

Different microarray systems more alike than previously thought

...s, three used "homemade" versions called two-color spotted cDNA arrays, and two used another commercial platform called two-color long oligonucleotide arrays. In general, the study showed Affymetrix GeneChips generated more reproducible data than the other microarrays. But the researchers also showed that a...

Study: 'homemade' gene expression technology unreliable

...hree-year, NIEHS-funded study compared a lab-built spotted long oligonucleotide microarray, and a commercially produced long oligonucleotide microarray. The two types were represented among 12 microarray platforms used by seven consortium laboratories, all of which generated data from two standard RNA expres...

New imaging technology shown to detect pancreatic inflammation in type 1 diabetes

...ecome concentrated at the inflamed site and can be spotted by high-resolution MRI. In their recent study, the researchers applied the MRI-MNP technique to determine whether they could predict which mice would develop autoimmune diabetes and monitor the effectiveness of immune therapy aimed at reversing dia...

Infectious disease expert warns of spread of Rocky Mountain spotted fever

...ning, tick-borne infection known as Rocky Mountain spotted fever warns that the first widespread outbreak of ... the number of people infected with Rocky Mountain spotted fever, which is fatal in up to 10 percent of those who contract it, has peaked for the third known t...

How Rickettsial pathogens break into cells

... that enable Rickettsia conorii, the Mediterranean spotted fever pathogen, to enter cells. Understanding how ...ed by related pathogens, including Rocky Mountain spotted fever and typhus. Pascale Cossart, an HHMI international research scholar at the Pasteur Institute ...

UF scientists trace origin of shark's electric sense

...roreceptordevelopment in the embryos of the lesser spotted catshark, an animal that is largely motionless during the day and hunts at night, mainly in the seagrass beds of the eastern Atlantic Ocean. Using molecular tests, scientists found two independent genetic markers of neural crest cells in the animal'...

UF scientists discover evolutionary origin of fins, limbs

...etic level." Researchers isolated genes from the spotted catshark, a type of slow-moving shark from the eastern Atlantic Ocean. By studying the activity of a dozen genes in shark embryos, they determined shark median fin development is associated with the presence of genes such as HoxD, Fgf8 and Tbx18, whi...

How ancient whales lost their legs, got sleek and conquered the oceans

...ine, has used developmental data from contemporary spotted dolphins and fossils of ancient whales to try to p...ed embryonic hind limb buds, as happens in today's spotted dolphins, they didn't have the Sonic hedgehog required to grow a complete or even partial limb, alth...

Computational analysis shows that plant hormones often go it alone

...mples of almost every gene expressed in a cell are spotted onto a tiny glass slide known as a microarray and analyzed under different physiological conditions. Although the analysis sounds complex, it answers a simple question: After stimulation with seven different growth hormones, are the same or different...

Alarming decline in Nepal's rhinos and tigers in former Maoist stronghold

... along with more than 660 pounds of smoked Sambar, spotted deer, barking deer, and four-horned antelope -- all important prey species of tiger and other carnivores. Virtually all the guard posts inside the Babai valley were found to be destroyed by the Maoists. Based on these recent developments, WWF immedi...

Renewed dolphin slaughter prompts new campaign

...ual take, the hunts also include striped dolphins, spotted dolphins, Risso's dolphins, false killer whales, and short-finned pilot whales. Most of the species are included on the World Conservation Union's Red List of Threatened Species. Also, the hunts have resulted in growing criticism from relevant man...

Fishy cooperation

...t social complexity in other animals. For example, spotted hyenas establish hierarchies in which dominant females support the rank contests of their daughters. Bottlenose dolphins form "political" coalitions every bit as complex as those of chimpanzees. Caledonian crows not only use tools in the wild, but al...

Computer scientists join in search for ivory-billed woodpecker

... in the 1930s or 1940s. In 2004, it was reportedly spotted in the Cache River National Wildlife Refuge. ...

A case of mistaken identity for the ivory-billed woodpecker?

...ker's distinctive black trailing wing edges can be spotted in the Luneau video as the wings stroke downwards. Previous analysis suggested these were the black wingtips of the Ivory-billed Woodpecker. Collinson argues that the Ivory-billed Woodpecker's rediscovery remains unproven: "With no verified report...

Massive herds of animals found to still exist in Southern Sudan

...umed near extinction. More than 50 beisa oryx were spotted in the Boma area alone. Almost 4,000 Nile lechwe were estimated in the Sudd swamps along with considerable populations of hippopotamus, buffalo and sitatunga. Southern National Park, located west of the Nile, did not fare as well. Here the team ob...

Caribbean frogs started with a single, ancient voyage on a raft from South America

...ite of many types of animals." Yellow and black spotted frog from caves in Haiti. Eleutherodactylus counouspeus . The field work for the study required nearly three decades to complete because many of the species are restricted to remote and isolated mountain tops or other inaccessible areas. Som...

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