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Tag: "modern" at biology news

The transparent organism: EMBLEM and Carl Zeiss give labs a unique look at life

...opes have to evolve to keep up with the demands of modern science," says Ernst Stelzer, whose group at EMBL developed SPIM. "Molecular biology has graduated upwards from studying single molecules - now we need to watch complex, three-dimensional processes in whole, living organisms. SPIM allows us to do tha...

New Clues Add 40,000 Years to Age of Human Species

...f the Omo River in southern Ethiopia. By applying modern radiometric dating techniques and a careful study ...n the African continent, but they differed on when modern humans first evolved, how humans dispersed to populate the globe, and what happened when, or if, mod...

Essential mangrove forest threatened by cryptic ecological degradation

...rs show that, increasingly, the magnitude of these modern irrigation projects has been such that entire river basins have been diverted to those of other rivers. Whereas these projects certainly develop the ability to grow crops inland, at the same time such practices drastically affect the coastal zone by ...

Researchers find missing genes of ancient organism

...t, however, appear to have no function. Therefore, modern tRNA introns might be remnants of an old essential... in the kingdom of Archaea as predecessors of more modern organisms that have gained a genetic load in the process of evolution," said Söll. "Or they may repr...

Ants Genetic Engineering Leads To Species Interdependency

...r both species. Millionsof years before the first modern humans evolved, ants were practicingmany of the social innovations we consider to be our own: division oflabor, agriculture, and even slavery.Indeed, these traits have been taken to their extreme in many antspecies, such as the case of slavemaker ant...

Scientists discover unique microbe in California's largest lake

... proteobacterial DNAwas obtained by an ancestor of modern chlorophyll-d producingcyanobacteria between roughly 10 and 100 million years ago."The maintenance of this hybrid gene over such a long time periodsuggests that it has been favored by natural selection," Miller says.The foreign DNA encodes a structur...

NC State scientist finds soft tissue in T. rex bones

...ein (and other organic molecules) and minerals. In modern bone, removing the minerals leaves supple, soft or... flexible matrix that resembled bone collagen from modern specimens. Current theories about fossil preservation hold that organic molecules should not preser...

New research indicates a 'troubled' greenhouse is brewing

...ices and permafrost. "In a remarkable parallel to modern hydrocarbon pollution of the atmosphere, this natural methane oxidized to carbon dioxide and created a global greenhouse event," he explains. "The past methane outburst dwarfed even human consumption of hydrocarbons, and there is a danger that anothe...

NJIT Presidential Award winner takes stem cell research another step

...d chemistry at NJIT. "She's at the leading edge of modern biology and if anyone can take stem-cell research forward, she can." ...

South America's vast pantanal wetland may become next everglades, UNU experts warn

...consequences of introducing intensive agriculture, modern cattle ranching, energy production, mining and oth...ng with the industrialization such as agriculture, modern cattle ranching, transport industry, hydroelectric energy production and mining. The Pantanal's dist...

Scientists discover how fish evolved to float at different sea depths

...he School of Biological Sciences, has revealed how modern fish, such as pike and cod, have developed a way o...help us to understand the diversity and success of modern fishes in their environment." Dr Berenbrink's research will be published in Science magazine on Fri...

Artifical cornea lets woman blind 20 years see

...irmary and Harvard Medical School as a "father" of modern cornea science. Dohlman has developed the concept of one such keratoprosthesis for more than forty years. Despite his advancing age of 82, Dohlman has managed to refine a type of artificial cornea widely known as the Boston keratoprosthesis. He has ...

LUCA technologies confirms real-time methane generation

...he earth. Luca scientists, employing the tools of modern biotechnology and genomics, have now shown that living methane generating, microbial consortia are present and actively forming methane within some of these hydrocarbon substrates. In addition to demonstrating that methane formation by these microbes...

UCLA launches $20 million stem cell institute to investigate HIV, cancer and neurological disorders

...at ushering scientific discoveries from the lab to modern medicine. Several targeted therapies were developed based on UCLA research, including Gleevec and the breast cancer drug Herceptin. Additionally, UCLA scientists played key roles in testing the targeted therapies Avastin and Tarceva. UCLA also is th...

Chemists identify immune system mechanism for methamphetamine binges

...a, is normally a good thing and forms the basis of modern vaccines, he explains. But ironically, people who abuse methamphetamine may build up antibodies to the drug itself, so they require increasing amounts to get high, resulting in binging behavior, he says. "Without knowing it, they're essentially vacc...

Low level of extinction during ice age linked to adaptability

... they also have implications for understanding the modern marine ecosystem," said Matthew Powell, a doctoral... "If the patterns I detected also are true for the modern ice age -- and other researchers' results suggest that they may be -- then modern marine life ought ...

Microbial forensics: The next great forensic challenge

...occasionally practiced over hundreds of years. But modern bioterrorism is more chilling than ever because of rapidly expanding knowledge about infectious diseases and biotoxins and their potential to wreak havoc in complex, interdependent societies. The nation is in the process of developing a strong microb...

Small species back-up giant marsupial climate change extinction claim

...possible future climate changes and its impacts on modern species." Megafauna roamed the globe in the Pleistocene epoch, between 1.8 million and 10,000 years ago. In the northern hemisphere species such as the woolly mammoth and sabretooth tiger dominated the landscape, while in Australia - which evolved ...

PET/CT can identify new cancer lesions at early stage, allowing for prompt treatment

...(lead author), and Pavni V. Patel, M.D. Results of modern techniques such as PET/CT can be "potentially medically significant and relevant," said Wahl. PET is a powerful medical imaging modality that noninvasively traces molecular and physiologic processes in the body. Currently, the most common use of PET...

New World founders small in number

... - a few hundred thousand years after our putative modern forebears spread out from Africa - descendants of archaic humans crossed the Bering land bridge from Siberia to North America. Several lines of evidence support this model, but that's where the consensus ends and the details are hotly debated. In a p...

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