Sentences with phrase «positive feedbacks loops»

Scientists are aware of a number of positive feedbacks loops in the climate system.

Hence, a positive feedback loop or wheel.

And the downside is the potential that the Fed will exacerbate turmoil in the global economy and potentially create a positive feedback loop where the foreign weakness actually bleeds into the US economy.

Being responsive sets up a positive feedback loop.

This constant positive feedback loop, coupled with occasional but infrequent corrections, turns you into the type of leader that other people want to be around, even if your office and your desk is a little bigger and has a better view.

Seppälä notes that creates a sort of positive feedback loop where connected people feel cheerful and chatty and this cheerfulness helps them connect with yet more people.

Having a business that creates a positive feedback loop that spirals constantly.

However, there is evidence that this trend is shifting towards a positive feedback loop.

One problem is that dangerous levels of climate change are exacerbated by positive feedback loops — changes that release more greenhouse gases from nature due to warming driven by humans.

Being finite and in short supply, incremental demand for physical gold would result in immediate and sustained price gains, creating a positive feedback loop in the market place.

As the panic to buy increases, it is a self - fulfilling positive feedback loop.

This all exists in a weird positive feedback loop where the longer rates are low, the less effect the low interest rates have.

This synchronous recovery could create a positive feedback loop.

One of the things we learned when oil collapsed a couple of years ago was that there was a positive feedback loop embedded in declining oil prices.

Present - day society is locked into four positive feedback loops which need to be broken: economic growth which feeds on itself, population growth which feeds on itself, technological change which feeds on itself, and a pattern of income inequality which seems to be self - sustaining and which tends to spur growth in the other three areas.

In this article, I argue that there exists a dangerous positive feedback loop between land value, embodied in house prices, and the banking system which lies at the heart of modern economies.

Polyakov says a positive feedback loop is underway, in which less summer sea ice will lead to warmer winter waters and even less summer ice in subsequent years.

The increased acetate in turn leads to increased food intake, setting off a positive feedback loop that drives obesity and insulin resistance, he explained.

The study authors suggest that this positive feedback loop may have served an important role in evolution, by prompting animals to fatten up when they stumbled across calorically dense food in times of food scarcity.

And these memories reinforce positive social interactions, creating positive feedback loops.»

The release of that carbon can, in turn, cause additional warming and the release of more carbon, something scientists call a positive feedback loop.

The study, «AKR1B1 promotes basal - like breast cancer progression by a positive feedback loop that activates the EMT program,» which has been published in The Journal of Experimental Medicine, suggests that an inhibitor of this enzyme currently used to treat diabetes patients could be an effective therapy for this frequently deadly form of cancer.

The researchers investigated how Suv39h1 employs a positive feedback loop to chemically tag thousands of adjacent histones, thus signaling the cell to stow away these underlying, unnecessary DNA sequences.

At that temperature, the study says, enough ice - sheet melting causes a positive feedback loop that leads to more melting and rising seas.

That's a positive feedback loop with negative consequences.

This positive feedback loop, he says, may have played a critical role in dog domestication.

The results suggest that human - dog interactions elicit the same type of oxytocin positive feedback loop as seen between mothers and their infants, the team reports online today in Science.

This new research demonstrates a positive feedback loop between the proteins expressed by these genes that promote GBM growth and survival.

This positive feedback loop seems to create a strong emotional bond between mother and child during a time when the baby can't express itself in other ways.

If the audio output from the speaker is received again by the microphone, the initial audio signal is strongly amplified in a positive feedback loop.

«The two mutations set off a positive feedback loop in specific tissues that amplified lifespan.

Former Buck postdoctoral fellow Di Chen, PhD, now an associate professor at the Model Animal Research Center, Nanjing University, China, lead author of the study, said that the positive feedback loop (DAF - 16 via the AMPK complex) originated in the germline tissue of worms.

A seemingly humdrum little molecule has found itself responsible for not just one but two positive feedback loops, one moderating climate and the other gathering animals across the food web.

The shrinking sea ice drives a classic positive feedback loop: as more ice melts, fewer patches of white snow reflect solar energy, and larger regions of dark, sunlight - absorbing seawater open up — both causing the ice to melt even faster.

That decrease causes rain and attracts more water vapor to the forest, in a continuous positive feedback loop.

This has the potential to initiate a positive feedback loop in which ROS drive further uroporphyrinogen I oxidation, leading to oxidative stress and pigment cell death.

Establishment of a robust single axis of cell polarity by coupling multiple positive feedback loops.

JCAP researchers are very encouraged by the success of their theoretical work and experimental synergistic efforts and the positive feedback loop that is now established between the JCAP high - throughout experimental pipeline and parameter - free, first - principles theory.

There's concern about tipping points and positive feedback loops.

The study, which appears in the December 2009 issue of the journal The American Naturalist, says that positive feedback loops between fire and trees associated with savannas can make fires more likely in these ecosystems.

«We used a mathematical model to show that positive feedback loops between fire frequency and savanna trees, alone or together with grasses, can stabilize ecological communities in a savanna state, blocking conversion of savannas to forest,» said the study's leading author Brian Beckage, associate professor in the Department of Plant Biology at the University of Vermont.

Nicole Bieberstein (Neugebauer, MPG)-- «Histone 3 lysine 4 trimethylation and co-transcriptional splicing: A positive feedback loop reinforcing gene expression» (2012)

Drier and warmer conditions would lead to more fires — a positive feedback loop where changes are amplified.

A positive feedback loop was established, with cooling leading to ice sheet growth and sea level lowering, which encouraged further ice sheet growth and cooling [26, 27].

Elowitz and Gurol Suel, then a postdoctoral researcher in Elowitz's lab, discovered that the decision to become competent is governed by random gene activity, which in turn triggers a positive feedback loop.

These mechanisms include positive feedback loops of activation by the SOX9 protein.

One possible mechanism for the movement of cells from one state to another would be the combination of stochastic changes in low - level gene expression or noise, combined with positive feedback loops.

But that's the problem with a positive feedback loop that is dependent on temperature change.

While the small changes in lineage transcription observed in our data set would be consistent with a stochastic model, the ES cell model described in Figure 9 would require both cross-repression and additional positive feedback loops to drive these random changes in gene expression down multiple distinct routes.

In this case, incursions of circumpolar deep water onto the continental shelf are melting the ice stream at its base and encouraging grounding line recession, which results in a positive feedback loop and further grounding line recession.