Sentences with phrase «by periods of»

Superimposed on these long - term trends are millennial - scale fluctuations characterized by periods of low sea - ice and high sea - surface temperature and salinity that appear quasi-cyclic with a frequency of about one every 2500 — 3000 years.

Earth's surface air temperature has significantly increased over the 20th century, although this overall global warming has been punctuated by periods of weaker / stalled warming or even cooling.

Instead, the find the historical records dominated by periods of multidecadal variability.

«We actually have periods of intensity followed by periods of lower intensity.

The fossil record shows periods of relative stasis punctuated by periods of relatively rapid change.

In this way Antarctica undergoes rapid ice loss followed by periods of slower recuperation depending on regional rates of snow accumulation.

«Even though California historically has periods of dry and wet years, there isn't an analog for climate extremes like the ones we've observed in recent years, such as those record - breaking prolonged periods of drought following by periods of intense precipitation pulses that cause flooding,» Woodburn said.

Considered from this perspective, what we see is not so much a long term trend followed by a short term pause, from ca 1998 - present, but a short term (1979 - 2001) trend preceded and followed by periods of little to no trend.

What we are speaking of is years of drought over large areas occasionally interrupted by periods of severe flooding.

This was followed by periods of work at the media art gallery Weisser Raum in Hamburg and in Palma de Mallorca, where she curated an exhibition with video works from the collection of the TW - Stiftung Hamburg.

Naeem Mohaiemen uses film and essays to research defeated left utopias, framed by the periods of Decolonization and World Socialism

Pollock was a mercurial man who lived a hard and fast life, punctuated by periods of depression and reclusiveness, and struggled with alcoholism, but he was also a man of great sensitivity and spirituality.

She's stronger and more grizzled as a result of her previous adventures but she also has moments of selfishness and petulance which have been exacerbated by her periods of isolation.

Periods over which these stocks underperformed also tended to be followed quickly by periods of strong outperformance, yielding transient drawdowns that were sharply reversed.

Historically, periods of low returns have been followed by periods of -LSB-...]

In the past there have been periods of relatively high correlation between US and non-US stocks, followed by periods of lower correlation.

Front month Eurodollar contracts should continue to push towards 100.00 in a series of painfully slow cautious rallies, punctured by periods of sideways consolidation with small dips.

To recap, Vitaliy's thesis is that equity markets are characterized by periods of valuation expansion («bull market») and contraction («bear market» or «sideways market»).

If you haven't closed your positions yet, you could be frustrated by periods of low volatility or consolidation.

I was partly inspired by Charles Bukowski's Run With the Hunted, which is arranged chronologically, by the periods of his life as opposed to the publication dates.

Such tiredness may be characterized by periods of little or no steering activity followed by sudden or excessive inputs.

Doom's single - player campaign is the game's signature feature, returning happily to old school shooter mechanics like health and armor pick ups, tons of secrets to find, and frenetic battles broken up by periods of exploration.

One warning sign that you have Non-24 is that you are completely blind and have periods of healthy, high - quality sleep, followed by periods of poor sleep.

In my book, Adrenal Fatigue: The 21st Century Stress Syndrome, I wrote in detail about how to minimize the impact of stress on health because the onset of adrenal fatigue is usually preceded by periods of stress.

And just like clockwork, the periods of overindulging were always followed by periods of excessive exercise and «clean eating» (aka... restrictive, miserable dieting.)

Your ancestors experienced periods of stress, but these were followed by periods of rest as well.

Attacks are followed by periods of recovery, before another attack occurs.

It's like any other training protocol; you'll have intermittent periods of fast gains followed by periods of no gains.

Author information Abstract BACKGROUND / OBJECTIVES: Intermittent energy restriction (IER) is an eating pattern of regular daily periods of restricted energy intake followed by periods of unrestricted energy intake.

Circuits involve periods of wight lifting or machines followed by periods of cardio with minimum rest time in between exercises.

Bullet proof your heart through short burst of exertion followed by periods of rest or recovery intervals.

Importantly, it been suggested fasting may be followed by periods of binging which could trigger or exacerbate eating disorders like bulimia.

These hormones can more easily trigger a woman to binge, which is often followed by periods of restricting and then binging again.

In the past there would be acute moments of stress followed by periods of rest but today we are in a constant state of chronic stress with very short periods of rest.

High - intensity interval training (HIIT) is a training system that involves short periods of high intensity exercise, followed by periods of recovery.

As to proper spacing of children, traditional cultures do not practice birth control; the proper spacing was therefore only regulated by the periods of abstinence from sexual activity observed in most cultures alongside of the fasting regiments.

HIIT stands for High Intensity Interval Training.This training routine is characterized by short periods of maximum effort followed by periods of active recovery (like sprinting for 30 - 40 seconds and then walking for 1 - 2 minutes).

This type of training, which involves short bursts of intense exercise followed by periods of recovery can be done many different ways and can even be done on treadmills with circuits of sprinting and jogging.

The vast majority of people with MS have a «relapsing - remitting» form of the disease characterized by flare - ups followed by periods of remission.

Therefore, for optimal gains, try to incorporate periods of slow tempo lifting into your workouts, followed by periods of lifting with significantly faster tempos, for example 6 - 12 weeks of slow speed followed by 6 - 12 weeks of fast speed.

Periods of aggressive attack are often balanced by periods of recovery.

There could be three evolutionary processes could explain this adaptive radiation of hominins: 1) the occupation of novel niches for species living in a highly productive but spatially constrained region when there are deep fresh water lakes in the EARS [46] and 2) the lakes themselves creating spatial structure producing population isolation and vicariance and 3) repeated periods of increased resource availability stimulated adaptation and radiation followed by periods of environmental stress when the lakes rapidly dried up imposing strong selection pressures [28].

Hence over the Plio - Pleistocene, East African climate is best characterised as a long - term trend towards increasing aridity punctuated by periods of precession - forced high rainfall leading to the periodic appearance of deep freshwater lakes.

The clinical course of SLE is variable and may be characterized by periods of remissions and chronic or acute relapses.

During tumor development, rapid expansion of cancer cells creates a hypoxic microenvironment that is followed by periods of reoxygenation to promote tumor progression.

It is important to remember that geological history contains numerous periods of slow evolution punctuated by periods of rapid evolution, which Steven J. Gould called Punctuated Equilibrium.

«We show that the diffusion of protons and hydroxide ions occurs during periods of intense activity involving concerted proton hopping, followed by periods of rest,» wrote primary author Ali A. Hassanali of the Swiss Federal Institute of Technology Zurich in the publication.

The traces of this tectonic dance are preserved by periods of deposition and non-deposition.

Parton and colleagues suggest, however, that periods of increased rainfall were not driven by mid-high latitude deglaciations every ~ 100,000 years, but by periods of maximum incoming solar radiation every ~ 23,000 years.

Back then I also didn't realize two important truths: First, companies often go through periods of hiring activity followed by periods of hiring inactivity.