Navigation Links
Theory in Biological News

New theory on why male, female lemurs same size

When it comes to investigating mysteries, Sherlock Holmes has nothing on Rice University biologist Amy Dunham. In a newly published paper, Dunham offers a new theory for one of primatology's long-standing mysteries: Why are male and female lemurs the same size? In most primate species, males ha...

New theory gives more precise estimates of large-scale biodiversity

Ask biologists how many species live in a pond, a grassland, a mountain range or on the entire planet, and the answers get increasingly vague. Hence the wide range of estimates for the planet's biodiversity, predicted to be between 2 million and 50 million species. A new way of estimating speci...

MS study offers theory for why repair of brain's wiring fails

Scientists have uncovered new evidence suggesting that damage to nerve cells in people with multiple sclerosis accumulates because the body's natural mechanism for repair of the nerve coating called "myelin" stalls out. The study, published today, July 1, 2009, in the print edition of " Genes ...

Rumbaugh's theory links positions of Wilson, Skinner

Des Moines, Iowa May 1, 2009 When Dr. Paul Naour was looking for a conclusion to his book detailing a previously unknown 1987 tape recording of a conversation regarding human behavior between theorists E.O. Wilson and B.F. Skinner, he found it at Great Ape Trust, a scientific research institute...

Researchers disprove 15-year-old theory about the nervous system

COLUMBIA, Mo. A delay in traffic may cause a headache, but a delay in the nervous system can cause much more. University of Missouri researchers have uncovered clues identifying which proteins are involved in the development of the nervous system and found that the proteins previously thought to ...

Rethinking the genetic theory of inheritance

Embargoed Until January 18, 2009 at 18:00 Greenwich Mean Time / 13:00 Eastern Standard Time (TORONTO): Scientists at the Centre for Addiction and Mental Health (CAMH) have detected evidence that DNA may not be the only carrier of heritable information; a secondary molecular mechanism called epigen...

Nearly a century later, new findings support Warburg theory of cancer

CHESTNUT HILL, MA (January 12, 2009) German scientist Otto H. Warburg's theory on the origin of cancer earned him the Nobel Prize in 1931, but the biochemical basis for his theory remained elusive. His theory that cancer starts from irreversible injury to cellular respiration eventually fell o...

No place like home: New theory for how salmon, sea turtles find their birthplace

CHAPEL HILL How marine animals find their way back to their birthplace to reproduce after migrating across thousands of miles of open ocean has mystified scientists for more than a century. But marine biologists at the University of North Carolina at Chapel Hill think they might finally have unra...

Scientists present 'moving' theory behind bacterial decision-making

Biochemists at North Carolina State University have answered a fundamental question of how important bacterial proteins make life-and-death decisions that allow them to function, a finding that could provide a new target for drugs to disrupt bacterial decision-making processes and related diseases...

Revised theory suggests carbon dioxide levels already in danger zone

New Haven, Conn. If climate disasters are to be averted, atmospheric carbon dioxide (CO2) must be reduced below the levels that already exist today, according to a study published in Open Atmospheric Science Journal by a group of 10 scientists from the United States, the United Kingdom and Fr...

New book further supports controversial theory of 'Man the Hunted'

Despite popular theories to the contrary, early humans evolved not as aggressive hunters, but as prey of many predators. "Humans are no more born to be hunters than to be gardeners," argues Robert W. Sussman, Ph.D., professor of anthropology at Washington University in St. Louis, in the newly-u...

Researchers offer new theory for dogfish and skate population outburst on George's Bank

New research by scientists at the University of Maryland Center for Environmental Science Chesapeake Biological Laboratory questions the long-held belief that a lack of predators and competitors was the primary cause for the increase of skates and dogfish observed in Southern New Englands Georges ...

Zoologists challenge longstanding theory that 'eyespots' mimic the eyes of predators' enemies

Circular markings on creatures such as butterflies are effective against predators because they are conspicuous features, not because they mimic the eyes of the predators own enemies, according to research published today in the journal, Behavioral Ecology[1]. Zoologists based at the University of...

Model connects circuit theory to wildlife corridors

Scientists at Northern Arizona University and the National Center for Ecological Analysis and Synthesis have developed a model that uses circuit theory to predict gene flow across landscapes. Their approach could give managers a better way to identify the best spots for wildlife corridors, which a...

Innovative model connects circuit theory to wildlife corridors

(Flagstaff, Ariz.) Scientists at Northern Arizona University and the National Center for Ecological Analysis and Synthesis have developed a model that uses circuit theory to predict gene flow across landscapes. Their approach could give managers a better way to identify the best spots for wildlife...

Breakthrough technology observes synapse in real time, supporting theory of vesicular recycling

NEW YORK (Dec. 13, 2007) -- For the first time, scientists at Weill Cornell Medical College in New York City have observed in real time a cellular mechanism that's crucial to how brain cells communicate. In doing so, they've also laid to rest a competing theory as to how key cellular processes ...

Group selection, a theory whose time has come...again

Although a high standard of morality gives but a slight or no advantage to each individual man and his children over the other men of the same tribe...an advancement in the standard of morality will certainly give an immense advantage to one tribe over another. With these words, Charles Darwi...

Study proposes new theory of how viruses may contribute to cancer

PITTSBURGH, Oct. 23 A new study suggests that viruses may contribute to cancer by causing excessive death to normal cells while promoting the growth of surviving cells with cancerous traits. Viruses may act as forces of natural selection by wiping out normal cells that support the replication of ...

Interacting protein theory awaits test from new neutron analysis tools

OAK RIDGE, Tenn., Sept. 27, 2007 -- An international collaboration directed by an Oak Ridge National Laboratory researcher has performed the first-ever atomic-detail computer simulation of how proteins vibrate in a crystal. Jeremy Smith, who leads ORNL's Center for Molecular Biophysics, said ex...

Clarke clarifies pattern recognition theory

Recent commentary has suggested that the extent to which anomaly theories have become ingrained in the minds of academics and popular commentators alike has led to certain common assumptions and misconceptions about Clarke's pattern recognition theory of humour. "There are two major misconcepti...

'Armored' fish study helps strengthen Darwin's natural selection theory

Shedding some genetically induced excess baggage may have helped a tiny fish thrive in freshwater and outsize its marine ancestors, according to a UBC study published today in Science Express . Measuring three to 10 centimetres long, stickleback fish originated in the ocean but began populatin...

Mechanism and function of humor identified by new evolutionary theory

A new publication answers centuries' old questions regarding the mechanism and function of humour, identifying the reason humour is common to all human societies, its fundamental role in the evolution of homo sapiens and its continuing importance in the cognitive development of infants. Alastai...

Woolly-mammoth gene study changes extinction theory

A large genetic study of the extinct woolly mammoth has revealed that the species was not one large homogenous group, as scientists previously had assumed, and that it did not have much genetic diversity. "The population was split into two groups, then one of the groups died out 45,000 years ago,...

St. Jude identifies the specific cell that causes eye cancer, disproving long-held theory

Investigators at St. Jude Children's Research Hospital have identified the cell that gives rise to the eye cancer retinoblastoma, disproving a long-standing principle of nerve growth and development. The finding suggests for the first time that it may one day be possible for scientists to induce f...

New dyslexia theory blames 'noise'

The dyslexic brain struggles to read because even small distractions can throw it off, according to a new model of dyslexia emerging from a group of recent studies. The studies contradict an influential, 30-year-old theory that blamed dyslexia on a neural deficit in processing the fast sounds of ...

Methane-belching bugs inspire a new theory of the origin of life on Earth

Two laboratories at Penn State set out to show how an obscure undersea microbe metabolizes carbon monoxide into methane and vinegar. What they found was not merely a previously unknown biochemical process--their discovery also became the inspiration for a fundamental new theory of the origin of li...

Why nerve cells work faster than the theory allows

With accuracy unknown until now, researchers from the Max Planck Institute for Dynamics and Self-Organization and the Bernstein Center for Computational Neuroscience in Göttingen together with the neurophysiologist Maxim Volgushev from the Ruhr-Universität Bochum have analyzed, by which rules, the ...

Ernst Mayr's theory illustrated in genetic epidemiology studies

The late, famed evolutionary biologist Ernst Mayr's theory of genetic revolution , introduced in 1954, remains controversial to this day and has many detractors. Mayr believed that genes interacted with one another, and that this genetic interaction in turn led to an interaction of natural sele...

Pitt professor's theory of evolution gets boost from cell research

An article by University of Pittsburgh Professor of Anthropology Jeffrey H. Schwartz and University of Salerno Professor of Biochemistry Bruno Maresca, published Jan. 30 in the New Anatomist journal, shows that the emerging understanding of cell structure lends strong support to Schwartz's theory o...

New evidence supports century-old theory of cancer spread

A Yale School of Medicine study in the December issue of Lancet Oncology challenges mainstream oncology researchers to consider tumor cell hybridization with white blood cells as a major reason that cancer metastasizes or spreads to other parts of the body. "Cancer cells exhibit a remarkable numb...

Free-energy theory borne out in large-scale protein folding

In unprecedented new research, scientists at Rice University have combined theory and experiment for the first time to both predict theoretically and verify experimentally the protein-folding dynamics of a large, complex protein. The interdisciplinary research appears this week in two back-to-bac...

AGU journal highlights -- Aug. 6, 2009

...nd, arise as a response of the northern Indian Ocean to intraseasonal winds associated with the Madden-Julian Oscillation. The authors use linear wave theory to explain these observations. Although the study focuses on the Indian Ocean, the authors believe that similar dynamics could drive coastal current v...

Scary ancient spiders revealed in 3-D models, thanks to new imaging technique

... researchers say that the existence of this common physical feature, shared by the Cryptomartus hindi and the Ricinulei, lends further weight to the theory that they are closely related. The models also reveal new information about Eophrynus prestivicii . Previous studies of fossilised remains of this...

Maternal, paternal genes' tug-of-war may last well into childhood

...y of intra-family conflict, described this week in the Proceedings of the National Academy of Sciences , is the latest wrinkle in the two-decades-old theory known as genomic imprinting, which holds that each parent contributes genes that seek to nudge his or her children's development in a direction most f...

Warmer environment means shorter lives for cold-blooded animals

...ship between temperature and lifespan that Munch and Salinas found through data analysis was strikingly similar to the relationship that the metabolic theory of ecology (MTE) predicts. The MTE is a modeling framework that has been used to explain the way in which life history, population dynamics, geographi...

UTMB study identifies women at risk of gaining excessive weight with injectable birth control

...dy breaks down simple carbohydrates such as glucose, and DMPA-associated interference with insulin action. Previous findings seem to argue against the theory that weight gain could be due to the drug's perceived effects on increased caloric intake and decreased energy expenditure, but ongoing research is ne...

The value of variation: Ecologists consider the causes and consequences

... institutions across North America and Europe. Traditionally, ecological theory has treated a population as a homogeneous set of individuals, implicitly as...namics and community structure," Bolnick said. "At present, mathematical theory is our only tool to determine the ecological effects of niche variation and...

Bad mitochondria may actually be good for you

...ive longer than normal mice. Mitochondrial oxidative stress is a popular theory explaining the aging process; over time, reactive oxygen species produced b...amage as they age a finding that seems to indicate the mitochondrial stress theory may not be correct. ...

Life on Earth came from other planets

...tholic Church are of the same mind and embrace the theory of "abiogenesis" also known as the "organic soup."... There is, however, no evidence to support the theory of "abiogenesis," which has been repeatedly dispro...n-life has miserably failed and up until now every theory proposed to explain the origin of life has been fo...

Researchers achieve major breakthrough with water desalination system

...ultidisciplinary team project involving faculty and students from the chemical, electrical and civil engineering departments with expertise in control theory and optimization, process design/monitoring, computational fluid dynamics, thermodynamics, and software development. ...
Other Tags
(Date:6/18/2015)... 2015 NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... growing mobile commerce market announces that its Wocket® smart wallet ... on the Mark", scheduled to air on WABC Radio (am770) ... th . The broadcast air- time for ... 8:00pm EST. NXT-ID, Inc.,s CEO Gino Pereira will ...
(Date:6/17/2015)... Germany , June 17, 2015 ... today launched new Investigator ® STR assay kits for ... the United States . The new genetic fingerprint kits ... markers (short tandem repeats or STRs) for DNA matching. They ... quality of DNA in each sample, a novel QIAGEN technology ...
(Date:6/17/2015)... BEACH GARDENS, Fla. , June 17, 2015 ... management solutions, today announced that its U.are.U ® ... Togo,s Eateries, Inc., a ... fast casual sandwich chain, to increase security, improve ... Crossmatch fingerprint readers enable instant, non-repudiable identity confirmation ...
Breaking Biology News(10 mins):NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 2NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 3QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 2QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 3QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 4QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 5Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 2Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 3
(Date:7/6/2015)... ... 2015 , ... Shortly after opening her second practice in Signal Hill, Dr. ... on a lien basis. Dr. Lim had previously worked with Dr. Kevin Kelly, ... refugees, Dr. Lim suffered with back pain herself throughout high school. Unaware of ...
(Date:7/6/2015)... (PRWEB) , ... July 06, 2015 , ... ... care from nurses or midwives, yet there is a large gap between the ... midwifery research required to improve health outcomes and reduce unnecessary or ineffective treatments ...
(Date:7/6/2015)... ... 2015 , ... The Asian-Pacific market for rheumatoid arthritis therapeutics reached a value ... a CAGR of over 3.2 percent in the years to come to hit the ... spurred by an anticipated launch of a number of promising pipeline candidates and an ...
(Date:7/6/2015)... ... July 06, 2015 , ... Understanding the new ICD-10 requirements ... leading the transition. ADVOCATE, the only 100% radiology, revenue cycle management company in ... ICD-10. The ten tips are timely and relevant guidelines to help radiology practices ...
(Date:7/6/2015)... , ... July 06, 2015 , ... ... in southern California, has partnered with Woodbridge Walk-In Urgent Care to offer on-site ... and other serious medical conditions. Screenings are affordable and accurate and run about ...
Breaking Medicine News(10 mins):Health News:Respected Chiropractor Opens Office in Signal Hill/Cambodia Town and Joins Doctors on Liens 2Health News:Columbia Nursing Nairobi Summit: Setting a Clinical Research Agenda for Africa 2Health News:APAC Rheumatoid Arthritis Therapeutics Market to Reach Value of USD 6.9 Billion by 2021, Says GBI Research in Its New Report Now Available at MarketPublishers.com 2Health News:ADVOCATE Takes the Lead to Ensure ICD-10 Success: “Top 10 Tips for ICD-10” 2Health News:Woodbridge Walk-In Offers Affordable Early Detection Health Screenings Through Longevity 2
Other Contents