Tag: "origins" at biology news

Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe

... fin clips taken while tagging to help confirm the origins of the specific bluefin tuna that we followed electronically. The research is funded by Irelands Bord Iascaigh Mhara, the Packard Foundation and the Monterey Bay Aquarium Foundation. Understanding the Gulf of Mexico Bluefin Tuna Breeding Area ...

Strains of laboratory mice more varied than previously thought

...as been thought to be a mosaic of DNA regions with origins in distinct subspecies. But the new study found that the majority of the mouse genome has unexpected levels of variation within their subspecies origin. The common laboratory mouse is not what we thought it was, said coauthor Gary Churchill, Ph.D.,...

Prenatal stress keeps infants, toddlers up at night, study says

...hilds sleep is vital to his or her growth, but the origins of problems affecting it remained unclear. Now, we have evidence that these patterns may be set early on, perhaps even before birth, said lead author Thomas OConnor, Ph.D., associate professor of Psychiatry at the University of Rochester Medical Cent...

New research proves single origin of humans in Africa

...presents a final blow for supporters of a multiple origins of humans theory. Competing theories on the origins of anatomically modern humans claim that either humans originated from a single point in Africa and ...

Kaposi sarcoma arises independently from multiple cells

...leagues performed the largest study to date on the origins of advanced Kaposi sarcoma. Biopsies from 98 Kaposi sarcoma patients were analyzed using molecular diagnostic techniques to compare the viral DNA of the tumors, which often contain human herpesvirus 8. The researchers found evidence that nearly 80%...

NIEHS researchers identify enzyme critical in DNA replication

...udy places us one step closer to understanding the origins of genome instability that underlie certain environmental diseases in humans, said NIEHS Director David A. Schwartz, M.D. NIEHS is part of the National Institutes of Health. The research was conducted by Zachary Pursell, Ph.D. and Thomas A. Kunke...

Marine worm opens new window on early cell development

... as a model organism for the study of evolutionary origins of cell types and animal forms. The marine worm develops by a stereotypic pattern of asymmetric cell divisions generating differently sized embryonic cells. Platynereis dumerilii, the researchers wrote, appears to have retained ancestral morphologi...

Damon Runyon names new class of rising stars in cancer research

... adult brain - key processes for understanding the origins of brain cancers. Karsten H. Siller, PhD, with his sponsor Lu Chen, PhD, at the University of California, Berkeley, California, is using simple genetic systems to investigate how molecules that are mis-regulated in cancer act to control neuron to neu...

Surprising origin of cell's internal highways

...cell imaging techniques that could reveal the true origins of these structures. "The Golgi apparatus is very close to the centrosome," said Kaverina. "So if you're not looking at it precisely, it is hard to distinguish between the centrosome and Golgi." To get a close look, Kaverina and colleagues tagg...

Nobel scientists Craig Mello and John Mather to speak on origins of life and universe

...SHINGTON, D.C. -- A free and public event, "On the origins of life and the universe: An afternoon with 2006 Nobel Laureates Craig Mello and John Mather," will be held at the Library of Congress on 26 July from 2:00 to 4:00 p.m., in Room 119 of the Thomas Jefferson Building, 10 First Street, S.E., Washington,...

Endosome-mediated signaling in plants

...gs will influence our thinking of the evolutionary origins of endosomes and hopefully help us to understand why cells use them as signaling compartments," noted lead author of the paper, Dr. Niko Geldner. Endosomes were once thought to function solely in the inactivation of receptors and the down-regulatio...

Ancient Etruscans were immigrants from Anatolia, or what is now Turkey

...ce, France: The long-running controversy about the origins of the Etruscan people appears to be very close to...al in the development of Roman civilisation. Its origins have been debated by archaeologists, historians and linguists since time immemorial. Three main th...

NSF funding to advance research on interplay between biology and society

...a better understanding of the context and cultural origins of these terms, which should help conservationists resolve disputes among stakeholders....

Research without borders: Head of Santa Fe Institute to address NSF

...ory to social organizations; the physical-chemical origins of life; biologically-inspired paradigms in comput...theories of growth, innovation and sustainability; origins of cooperation; evolution of human languages; dynamics of financial markets; conflicts and patterns ...

Scientists propose the kind of chemistry that led to life

...novel arrangements. A major question about lifes origins is how chemicals, which have no self-interest, became biological -- driven to evolve by natural selection, he says. This simple model shows a plausible route to this type of complexity. Dill is also a professor of biophysics and associate dean of res...

Origins of nervous system found in genes of sea sponge, report scientists at UC Santa Barbara

...e discovered significant clues to the evolutionary origins of the nervous system by studying the genome of a ...humans and mice, said Oakley. This pushes back the origins of these genetic components of the nervous system to at or before the first animals much earlier th...

Origins of nervous system found in genes of sea sponge

...e discovered significant clues to the evolutionary origins of the nervous system by studying the genome of a ...humans and mice, said Oakley. This pushes back the origins of these genetic components of the nervous system to at or before the first animals much earlier th...

UCR biologist receives $1.75 million grant to study plant-threatening bacteria

...tners, Nunneys group will explore the geographical origins of the different forms of Xylella . Are there yet more unknown forms of Xylella in the native plants of Central and South America" Nunney asked. Citrus is not native to South America, so Xylella must have been living in something else before c...

Human ancestors learned to walk upright in the trees, say experts

...me upright walkers in a slow process which had its origins in knuckle-walking movement on all fours just as...e on the ground. The traditional theory of human origins states that we evolved to walk upright from ancestors who walked on all fours when on the forest flo...

Evolution of animal personalities

... in the May 31 issue of Nature. The evolutionary origins of animal personalitydefined as consistent behavior over time and in different situationsis poorly understood. Why do different personality types exist within a single population given that, at first sight, one would expect one type to be more succes...

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(Date:10/15/2014)... Gutenberg University Mainz (JGU) as a full member, ... maintain a significant nationwide standing in the field ... Johannes Gutenberg University Mainz as a full member ... national and international competition for the best minds ... be proud that Mainz University has been recognized ...
(Date:10/15/2014)... in female mice to an enzyme activated by the ... resistant to respiratory infections than males. Now, an international ... bacterial pneumonia in female mice is linked to the ... that this enzyme is ultimately activated by the release ... lead by Professor Lester Kobzik at the Harvard University ...
(Date:10/15/2014)... Fred Alt will be awarded the 44th Rosenstiel Award ... for his pioneering research exploring the mechanisms of genomic ... cancer cells. Alt is the second alumnus to win ... Nobel Prize in 2003. , Alt is the Charles ... at Harvard Medical School and an investigator at the ...
Breaking Biology News(10 mins):Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3Brandeis awards 44th Rosenstiel Award to pioneering geneticist Fred Alt 2
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