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asymmetry at Biology News

A new link between stem cells and tumors

...ll bud off and become the specialized cell. "This asymmetry provides the new cell with molecules it needs to launch new genetic programs that tell it what to become," says Cayetano Gonz�lez, whose group began the project at EMBL and has continued the work as they moved to the IRBB-PCB. "The current study inve...

Bigger brain size matters for intellectual ability

...true for right-handers only, indicating that brain asymmetry is a factor in men. Spatial intelligence was also correlated with brain size in women, but less strongly. In men, spatial ability was not related to overall brain size. These results suggest that women may use verbal strategies in spatial thinking,...

Forsyth scientists gain greater understanding of how embryos differentiate left from right

...ecular and genetic factors that control left/right asymmetry and identified a novel component: an ion transport...ight axis. Instead, their research showed a single asymmetry mechanism linking ciliary, serotonergic (serotonin is the chemical substance involved in transmittin...

UCLA: How does your brain respond when you think about gambling or taking risks?

...in the past 50 years, whose components include the asymmetry between how losses and gains are valued," Fox said. Sabrina Tom, a UCLA research assistant in psychology and lead author of the study, said the people who have the most deactivation in the reward pathways were also the most loss-averse. A woman...

Some caterpillers just don't want to grow up

... so far, only a "priority effect" ?the competitive asymmetry between last year's slow and this year's fast developing caterpillars ?can explain why more than 50% of caterpillars mature in their second season. Yet, according to the currently available data, the effect seems to be too weak to fully explain the l...

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Principles of Curve Fitting for Multiplex Sandwich Immunoassays, Rev B

...ion with an additional parameter added for asymmetry (Baud 1993). This additional parameter provides a better fit when the response curve is not symmetrical. One derivation of the 5PL equation may be expressed as follows: 4PL vs. 5PL The type of logistic equatio...

Selection of Standards for Bio-Plex Cytokine Assays, Rev A

...k effect and inadequate washing, can cause asymmetry in the curve (Nix and Wild 2001). The 5PL regressi... contains an additional parameter to accommodate asymmetry in the curve, and thus is the more robust type of logistic regression for Bio-Plex assays. ...
asymmetry at Biology Dictionary

Asymmetry

Asymmetry The asymmetry of tritypes and tetratypes has been interpreted a...chirality might simply be explained by an initial asymmetry by chance followed by common descent . Full article >>> CO- FISH has been a very r...
asymmetry at Medicine News

Choose your mate

...ring in terms of their viability, their wing size, asymmetry of features and the number of tooths on their sex combs which are used to purport females. The main difference between offspring was that those whose mothers had been able to pick their mate were more likely to live longer. Dr Promislow, said "Our r...

Big Brained People Are More Intelligent

...true for right-handers only, indicating that brain asymmetry was a factor in men. The study involved testing of intelligence in 100 neurologically normal, terminally ill volunteers, who agreed that their brains be measured after death. The findings revealed that spatial intelligence was also correlated with...

Lunar Forces Affect The Surface Of The Earth

...urface layer back. Doglioni points to a profound asymmetry in the distribution of the earth's big mountains as a part of the evidence. Both the Rocky and Andes mountains are on the eastern side of the Pacific Ocean. The answer, according to him, is that in the eastern Americas, the underground forces of plat...

Breast cancer: Possible Link Between Asymmetrical Breasts and Cancer

...e.' Lead researcher Dr Diane Scutt said 'Breast asymmetry should not be considered in isolation, it is important to consider a woman's entire risk profile before assessing her breast cancer risk.' Maria Lead beater has said that this study is insufficient to prove anything conclusive, in order to seal th...

Dermoscopy An Able Tool For The Fight Against Skin Cancer

... detect possible malignant tumours were. They were asymmetry of colour or structure, presence of a net of thick lines with irregular distribution and detection of white and/or blue structures. They were also advised that if two of these criteria are met, the examined lesion could be considered potentially mali...

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Pain

...lthough most faces have some asymmetry, an obvious asymmetry may be due to a dental problem, particularly if associated with pain . Full article >>>...
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