Tag: "origin" at biology news

A Disease Last Seen In The 1950's Has Struck Again

...in Minamata Bay. But they disagree on the origin of the mercury. Harada, who has yet topublish his findings, believes the source is mercury used by gold miners. Minersrelease about 250 tonnes of mercury into the Amazon region each year, mostending up in rivers. Mergler, however, thinks def...

Scientists Discover Key Cog In Receptor That Governs Ripening

... ago.That, said Bleecker, suggests "a very ancient origin for this protein function,"one that predates the evolution of land plants altogether. Moreover, similar genes are known to exist in other plants, the tomato, forexample, which is only a distant relative of Arabidopsis. What that allsuggests, Bleecker...

Important New Fossil Animal Discovered By Wits Scientists

... old,which reinforces South Africa as the place of origin of all mammals,will be announced tomorrow by scientists at the University of theWitwatersrand. Professor Bruce Rubidge, Director of the Bernard Price Institute forPalaeontological Research at Wits, and visiting Canadian researcher DrSean Modesto, hea...

Flatworms Are Oldest Living Ancestors To Those Of Us With Right And Left Sides, Reported In The 19 March Issue Of Science

...the familiar earthworms.) "It may well be that the origin of bilateral organisms occurred a bit earlieron, [before the Cambrian explosion,] from simple animals whose fossils have notbeen recovered," said Bagu. "This may mean that we need to look more carefullyat pre-Cambrian rocks or sediments to search for...

Viral Harpoon Structure Suggests Measles, HIV And Ebola Viruses Related

...t this point, however, to pinpoint theevolutionary origin of that ancestry, he said. Regardless, said Lamb. "knowing the structure of this one fusion proteinmay lead to the development of drugs capable of thwarting the action of thefusion proteins of other members of the paramyxovirus family, and even poss...

Biggest Bacteria Ever Found

...trinsic interest to those wishing to understandthe origin and nature of life. Earth's environment and the life it supportsdepend on the constant recycling of certain key elements, such as carbon,nitrogen, and sulfur. Microorganisms are major contributors to this recyclingbecause they facilitate critical rea...

NYU Chemist Supports New Theory For Origin Of Life

...esis: A critical analysis and implications for the origin of life,"which appeared in the April 13th Proceedings of the National Academy of Sciences (Vol.96, Issue 8, 4396-4401). Shapiro also lays out his argument in a new bookentitled PLANETARY DREAMS, which was published by John Wiley & Sons in April. In...

Bone Marrow Gives Rise To Functioning Liver Cells, University Of Pittsburgh Scientists Discover

...ls, thus helping to repair the damaged organ. The origin ofoval cells has remained controversial, although they are known to carry markersalso seen on bone marrow cells. "Our animal experiments using cross-sex bone marrow transplants clearlyshow that bone marrow-derived cells eventually become full...

UCSF-Led Team Offers New Insight Into Neurological Basis Of Dyslexia

...abilities, thesignificance of this problem for the origin of reading impairments has beenunclear. The researchers conducted their current study in seven dyslexic adults who wereof normal intelligence but severely challenged by reading, spelling and writing. Results were compared with those recorded in seven...

Where the wild ones are: origins of staple crop found

...esticated crop. "The overall picture of cassava's origin represents a fundamental departure from the traditional view that envisioned this crop as a derivative from one or more complexes of interbreeding wild species, from one or more regions in the Neotropics," says Olsen. "This new insight will be usefu...

Discovery of new bird species in China, oldest beak shows evolution complexity

...feathered dinosaur as people advocating a dinosaur origin of birds have said." In 1979, Feduccia made international news by publishing a paper provingthat the oldest known bird, Archaeopteryx, could fly because its wing featherswere asymmetric. Barbs on one side of its wing feather quills clearly gr...

Chemists hold national meeting August 22-26 in New Orleans

..., and Agriculture to be Reported Symposia on the origin of elements in the solar system, pesticide residue...crobial resistance New experiments to resolve the origin and abundance of elements found in thesolar system From Monday through Wednesday during the meeti...

Mobile DNA sequences could be the cause of chromosomal mutations during the evolution of species

...eUniversity of Chicago, have demonstrated that the origin of natural chromosomalinversions present in the D...ection of Alfredo Ruiz. They have beenstudying the origin of one of the chromosomal inversions in the species Drosophila buzzatii . By using molecular mark...

Nearby supernova may have caused mini-extinction, scientists say

... reductionin marine photosynthesis." The supernova origin of the observed iron-60 would be confirmed by findingadditional radioactive nuclei, such asplutonium-244. "This would open up a whole new era of supernova studies usingdeep-ocean sediments as a telescope,"Fields said....

Botanical evidence indicates "Shroud of Turin" originated in Jerusalem area before 8th century

...alysis of pollen grains and plant imagesplaces the origin of the "Shroud of Turin," thought by many to be the burialcloth of Jesus of Nazareth, in Jerusalem before the 8th Century. Theauthenticity of the Shroud has been debated for centuries, with a 1988 carbondating process placing it in the Middle Ages. ...

Scientists discover second gene for disorder described by Darwin

...loped sweat glands. Thesecharacteristics were the origin of the disorder's tongue-twistername--"hypohidrotic" referring to low levels of perspiration, and "ectodermaldysplasia" meaning abnormal development of certain tissues derived fromembryonic ectoderm (teeth, hair, nails, glands). The individuals obse...

Donated organs 'heirlooms not spare parts'

...esearch also shows thatrecipients are aware of the origin of the "gift", that it came from anotherhuman being and that somewhere a family is grieving over his or her death. "Donor families on the other hand never speak of the organ in this way as adetached object, machine part or otherwise. It is always li...

Chemists hold national meeting August 22-26

..., and Agriculture to be Reported Symposia on the origin of elements in the solar system, pesticide residue...crobial resistance New experiments to resolve the origin and abundance of elements found in the solar system From Monday through Wednesday during the m...

Primate genus sheds light on great ape and human origins, as reported in Science

...elley. " Kenyapithecus ' exact relationship to the origin ofthese later apes is still somewhat of a mystery at this point, but we think thatthe work reported in our paper at least establishes a clearer framework forinterpreting how Kenyapithecus might fit into ape and human ancestry." The site of Kipsaram...

Jurassic period mammal teeth found; prevailing theories challenged

...riod,indicating a Gondwanan rather than a Northern origin for this mammal subgroup,as long assumed, said Wyss. "This is the first mammal from this interval of time from Southerncontinents," he said, "earlier than anything in the North." Most paleontologists live and work in the Northern Hem...

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(Date:4/17/2014)... of chronic inflammation in non-cancerous prostate tissue may have ... than those with no inflammation, according to results of ... Hopkins Kimmel Cancer Center. , The link between persistent ... so-called high-grade prostate cancer those with a Gleason ... of the most aggressive and rapidly growing prostate cancers. ...
(Date:4/17/2014)... to a study published today in PLOS Pathogens ... where malaria is common can mount an immune response ... to avoid repeated bouts of high fever and illness ... their bloodstream. The findings may help researchers develop future ... the malaria parasite. , Each year, approximately 200 million ...
(Date:4/17/2014)... MANHASSET, NY In a review published in the ... MD, president of The Feinstein Institute for Medical Research, ... the medical community,s approach to treating sepsis, ... 200,000 Americans. , Sepsis occurs when molecules released into ... inflammation throughout the body. Inflammation is necessary for maintaining ...
(Date:4/17/2014)... Doctors who treat patients with a severe and ... an agonizing treatment decision. , The drug sirolimus ... relieve shortness of breath. But some patients eventually ... potentially fatal complications following transplantation. , "It,s a ... director of Loyola University Medical Center,s LAM Clinic ...
(Date:4/17/2014)... By discovering a new mechanism that allows blood to ... UC Irvine and the Salk Institute have opened the ... stroke-induced brain damage. , A complex and devastating neurological ... primary reason for disability in the U.S. The blood-brain ... blood-borne material into the brain, causing the permanent deficits ...
Breaking Medicine News(10 mins):Health News:Chronic inflammation linked to 'high-grade' prostate cancer 2Health News:Chronic inflammation linked to 'high-grade' prostate cancer 3Health News:Study sheds light on how the immune system protects children from malaria 2Health News:Feinstein Institute researcher publishes new perspective on sepsis 2Health News:Patients with rare lung disease face agonizing treatment dilemma 2Health News:Patients with rare lung disease face agonizing treatment dilemma 3Health News:Study IDs new cause of brain bleeding immediately after stroke 2
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