Tag: "mode" at biology news

Microfossils show promise in prospecting climate history

... marshes. We used fossils as a tracer to prove the mode of deposition." The foraminifera that Hippensteel found in the deposits include modern off-shore species and also species that were know to live off-shore in the Oligo-Miocene period (25-30 million years ago) and are known to be present in sediment d...

JCI table of contents November, 2005

...he physiological effects of this newly appreciated mode of signaling but also provide important and previously unappreciated clues as to the underlying molecular mechanisms." TITLE: Cardiac-specific overexpression of AT1 receptor mutant lacking G alpha q/G alpha i coupling causes hypertrophy and bradyc...

Engaging prior learning on creationism and evolution may benefit college biology students

...y progressed toward a more sophisticated cognitive mode by engaging them at the level of their initial understanding--including their initial ideas about creationism. Although alternative explanations are possible, Verhey maintains that his results suggest engaging prior learning "was an effective approac...

Calls for improved screening of colorectal cancer in Europe's aging population at ECCO 13

..., however major uncertainties exist related to the mode of administration of FU. In the US, a weekly bolus schedule, the Saltz regimen, is used extensively, whereas in Europe, infused 5FU is preferred. Irinotecan with the bolus FU/FA Nordic schedule (FLIRI) is a convenient treatment with efficacy and tox...

JCI table of contents December, 2005

...erous mechanisms have been proposed to explain its mode of action. Studies using animal models of autoimmune skin blistering diseases suggested that intravenous Ig protects against these autoimmune diseases as well. In a paper appearing online on November 10 in advance of print publication of the Decemb...

Tips from the journals of the American Society for Microbiology

...ional work is needed to confirm this as a possible mode of HPV transmission." (S. Bodaghi, L.V. Wood, G. Roby, C. Ryder, S.M. Steinberg, Z.M. Zheng. 2005. Could human papillomaviruses be spread through blood? Journal of Clinical Microbiology, 43. 11: 5428-5434.) New Gene Identified for Antiviral Act...

New technique multiplies life span in simple organisms

...n against cell damage. Organismsusually enter this mode in response to starvation. The long-lived organisms in Longo's experiment showedextraordinary resilience under stress. "We hit them with oxidants, we hit them with heat," Longo said."They are highly resistant to everything. What they're doing isbasic...

Surprise! Computer scientists model the exclamation point

...matical theory of surprise proposes an alternative mode for characterizing and quantifying information, distinct from Shannon's model -- a subjective one. Shannon's technique is not about a specific observer, but any observer seeking to pick out a message from its noisy environment, or send one with an a...

Study in Royal Society journal on link between creativity and mating success

...nal organisation of the cell-perhaps this is a new mode of signalling. Contact: Professor A Curtis, Centre for Cell Engineering, University of Glasgow, Glasgow, G12 8QQ Nano measurements with micro devices: mechanical properties of hydrated collagen fibrils by Professor SJE Eppell, Ms BNS Smith, Professo...

The World Economic Forum announces new class of technology pioneers for 2006: Ossur selected

...ications of the technology. Companies in "stealth" mode and companies with untested ideas or models will not qualify. Leadership. The company must have visionary leadership that plays a critical role in driving the company towards reaching its goals. Status. The company must not currently be a Member ...

Supersized 'island' of resistance genes discovered in an infectious bacterium

... the emergence of new strains and understand their mode of evolution."...

Academy honors 15 for major contributions to science

...ker and Henkin were chosen "for establishing a new mode of regulation of gene expression in which metabolites regulate the activity of their cognate pathways by directly binding to mRNA." The award is supported by Pfizer Inc and has been presented since 1962. NAS AWARD FOR SCIENTIFIC REVIEWING a prize ...

News tips from the Journal of Neuroscience

... mealworm.The sonar pulses vary from 4 Hz insearch mode to 150200 Hz during preydetection. The authors des...visually guided animal, the bat can operatein scan mode without altering itsmovement direction, but in attack mode,the gain is high, and movement is determi...

A cancer promoting protein shows up in an unexpected place in the cell

...of the study is that it identifies a potential new mode of suppressing tumors, says Dr. Philips. "Our data suggested that if we could find a way to phosphorylate K-Ras, we might be able to promote programmed cell death in tumors driven by the ras oncogene." To test this hypothesis, the researchers ...

Immunoblot agent misses altered heart cell kinase, points to possible therapeutic opening

...est that tyrosine phosphorylation leads to a novel mode of PKC-delta activation during oxidative stress, since it generates an enzyme with altered co-factor requirements and substrate specificity," she added. During the course of studies designed to expose phosphorylation mechanisms, they discovered that ...

Found: Key 'go-between' in heart disease

... "These 'go betweens' are crucial to angiotensin's mode of action," he said. "If we take out these middle men (actually called transcription factors) we can greatly limit production of the growth factor, which is the result we would hope to see clinically." "Our findings will provide future opportunities ...

Biggest physics meeting of the year

...ppears to be the preferred, indeed often the only, mode of replication for complex, multicellular organisms. Why don't organisms instead choose asexual reproduction, which is a bit riskier (no built-in mechanism for preventing the accumulation of mutations) but typically quicker (no time spent in finding...

News tips from the Journal of Neuroscience

...al. provide evidence for a second, long-postulated mode of action for this psychostimulant: release of a reserve pool of DA vesicles. The authors delivered long electrical stimuli to the mouse medial forebrain bundle and measured DA by cyclic voltammetry in the striatum. Cocaine increased DA release by ap...

Pitt researchers find 'switch' for brain's pleasure pathway

...ceive causes neurons to switch into or out of this mode has been a mystery. Using anesthetized rats, Lodg...lling neurons either to go into this communication mode or to stop communicating," says Grace. "All the other parts of the brain that talk to the dopamine n...

Paclitaxel combined with bevacizumab prolongs progression free survival in metastatic breast cancer

...y Oncology, P.C. USA, adding, "A drug with a novel mode of action on the blood vessels within the cancer has not added side effects for patients and those who received the test drugs kept their cancer under control for almost twice as long as patients who received the standard regimen. The next step will ...

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(Date:7/30/2014)... protection from HIV infection could be as simple as ... , University of Washington bioengineers have discovered a ... protects women from contracting HIV. Their method spins the ... contact with moisture, releasing higher doses of the drug ... or creams. , "This could offer women a potentially ...
(Date:7/30/2014)... Long before humans figured out how to create colors, ... bright butterfly wings of many different hues, for example. ... a more environmentally friendly way to make colored plastics. ... and architectures of materials rather than dyes, to ... Letters . , N. Asger Mortensen, Anders Kristensen and ...
(Date:7/30/2014)... Steven Chown has been awarded the Scientific Committee ... in Antarctic Research. , SCAR, an inter-disciplinary international ... international scientific research in the Antarctic region, and ... the Earth system. The organisation also provides scientific ... responsible for governing the region. , The medal ...
Breaking Biology News(10 mins):Dissolvable fabric loaded with medicine might offer faster protection against HIV 2Dissolvable fabric loaded with medicine might offer faster protection against HIV 3
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