Sentences with phrase «cycle variation of»

(Solar - cycle variation of nitrates also suggests that we do not require global - scale variation of temperature to explain some geological evidence of past solar cycles in lake sediments or shallow sea sediments.

References about solar - cycle variations of nitrates and hydrogen peroxide * Bradley R.S., 1985: Quaternary Paleoclimatology.

From the solar cycle variations of p - and f - modes [and we have now enough data from the SOHO spacecraft to make such a study] we now have an internally consistent picture of the origin of these frequency changes that implies a sun that is coolest at activity maximum when it is most irradiant.

Not exact matches

The RBA's inflation target is defined «over the course of the cycle», «allowing for the natural short - run variation in inflation».

While there's a great deal of variation across individual market cycles, that's roughly the historical average for a 5.25 year market cycle: a 135 % gain, a 30 % loss, and a 65 % full - cycle return (about 10 % compounded annually, with the full - cycle return coming in at less than half of the bull market gain).

The industrial sector, together with construction, accounts for the bulk of the variation in national output over the course of the business cycle.

The device from which this fatigue is obviated takes the form of the preservation of the fundamental abstract structure of the cycle, combined with the variation of the concrete details of succeeding cycles.

I've been using these rolled oats in breads, but this morning I made a pot of oatmeal in an attempt to add some variation to my omelet yogurt omelet cycle... I added some PB Fit to the boiling water when I added the oats.

JonaRose Feinberg: You know it seems like to some extent some of those cycle variations have to do a little bit whether the babies are identical or fraternal.

In this post, Andrew Defty looks at the variation in turnout across the 40 PCC elections to consider the impact of embedding the elections in the electoral cycle, and how this may have resulted in a decline of independent PCCs

Awareness of extreme weather rises Ray Gaesser, chairman of the American Soybean Association, said farmers were sometimes reluctant to talk about climate change because they saw variations in weather on a regular basis and current weather patterns could be part of cycle that would eventually fix itself.

But even earlier readings can provide a record of natural climate variation caused by volcanic eruptions or cycles in ocean circulation.

There are three types of variations that occur simultaneously, known as the Milankovitch Cycles:

Finney believes that changes in climate cause the cycles in salmon populations, and as scientists struggle to understand the rate and effects of global warming, salmon may help them distinguish normal climate variations from the early warnings of a system gone dangerously wrong.

Muller - Landau is interested in year - to - year variation in the cycles by which different species of trees grow and shed their leaves, fruit and flower.

«Menstrual cycle variation in hormones is one piece in the overall picture of sleep quality in midlife women,» Baker said.

The sediment cores used in this study cover a period when the planet went through many climate cycles driven by variations in Earth's orbit, from extreme glacial periods such as the Last Glacial Maximum about 20,000 years ago, when massive ice sheets covered the northern parts of Europe and North America, to relatively warm interglacial periods with climates more like today's.

Both real - world observations and the team's simulations reveal that the abnormally strong winds — driven by natural variation in a long - term climate cycle called the Interdecadal Pacific Oscillation — have, for the time being, carried the «missing» heat to intermediate depths of the western Pacific Ocean.

11 Duration, in years, of a typical solar cycle, natural variations in the number of sunspots and flares that affect solar irradiance levels on Earth.

A new analysis looks at how rates of reproduction and survival of 26 shrub species with fire - dependent life cycles in the Cape Floristic Region in South Africa respond to environmental variation.

By studying the fossilized teeth of rodents from over a span of 22 million years, Jan van Dam of Utrecht University and his colleagues found that rodent species rise and fall in cycles that closely match variations in Earth's orbit.

That record could help climatologists understand decade - and century - long variations in hurricane patterns and begin to unravel the impact of global warming on storm cycles.

An artist's rendering of an exoplanet with cloudy mornings and clear, scorching afternoons, exhibiting a cycle of phase variations that occur as different portions of the planet are illuminated by its star, as seen from Earth.

Astronomers at the University of Toronto, York University and Queen's University Belfast used measurements of the phase variations of six exoplanets obtained by the Kepler space telescope to forecast their daily weather cycle.

Predicting the effects of future ocean warming on biogeochemical cycles depends critically on understanding how existing global temperature variation affects phytoplankton.

Volcanologists from Johannes Gutenberg University Mainz (JGU), Leibniz Universität Hannover in Germany and Uppsala University in Sweden have discovered that the temperature and water content of magmas varies through the lifecycle of a volcano, and that these variations occur in cycles in relation to the fresh input of new magma from below.

Consulting the model, the researchers hypothesized that the overall cell cycle's lack of variation was the result of a built - in negative feedback mechanism.

The fact that the amplitude of the events vary from time to time implies slower variations, just like modulations of the sunspot number has led to the proposition of the Gleissberg cycles (80 - 90 years).

Thus the study shows that that iRAM simulates recently observed cloud cover changes in this the eastern Pacific more accurately than the GCMs, and iRAM also successfully simulates the main features of the observed interannual variation of clouds in this region, including the evolution of the clouds through the El Niño Southern Oscillation (ENSO) cycle.

Veizer must be aware that in view of these more recent data, the scientist who originally proposed this correlation in 1991, Knud Lassen, has concluded in 2000 that solar cycle variations can not explain the ongoing warming trend [1].

They then infer a higher temperature sensitivity to changes in radiance over this cycle and conclude that maybe 0.1 K temperature increase would be possible due to the variation in solar radiance, or about 30 % (if you push it) of the total temperature anomaly over this period.

On shorter time scales, and layered on top of Pacific Decadal Oscillation variation, the Pacific North American pattern and the El Niño - Southern Oscillation cycles (see Climate chapter) can also affect variation in snowpack.

Herman, F., Anderson, B. & Leprince, S. Mountain glacier velocity variation during a retreat / advance cycle quantified using sub-pixel analysis of ASTER images.

Over the course of evolution, organisms have developed variations in their cell cycle programs to be able to generate and maintain a plethora of different cell types and tissues.

Periods of volcanism can cool the climate (as with the 1991 Pinatubo eruption), methane emissions from increased biological activity can warm the climate, and slight changes in solar output and orbital variations can all have climate effects which are much shorter in duration than the ice age cycles, ranging from less than a decade to a thousand years in duration (the Younger Dryas).

«the variation of ionization by galactic cosmic rays over the decadal solar cycle does not entail a response... that would explain observed variations in global cloud cover»

These ocean winds, in turn, are affected by variations in natural cycles that manifest in changes at the surface of the ocean and immediately over it.

The Milankovitch cycles are a set of cyclic variations in characteristics of the Earth's orbit around the sun.

Like the Milankovitch cycles, sunspot cycles» effects are too weak and too frequent to explain the start and end of ice ages but very probably help to explain temperature variations within them.

The best known shorter - term variations are sunspot cycles, especially the Maunder minimum, which is associated with the coldest part of the Little Ice Age.

The consensus is that several factors are important: atmospheric composition (the concentrations of carbon dioxide, methane); changes in the Earth's orbit around the Sun known as Milankovitch cycles (and possibly the Sun's orbit around the galaxy); the motion of tectonic plates resulting in changes in the relative location and amount of continental and oceanic crust on the Earth's surface, which could affect wind and ocean currents; variations in solar output; the orbital dynamics of the Earth - Moon system; and the impact of relatively large meteorites, and volcanism including eruptions of supervolcanoes.

Kuhle explains the interglacial periods by the 100,000 - year cycle of radiation changes due to variations of the Earth's orbit.

If the Sun were a distant star, we could observe its 11 - year cycle as a variation in integrated H+K flux with this period and with a peak - to - peak amplitude some 30 % of the mean.

Single - cell transcriptomics on pluripotent stem cells has provided new insights into cellular variation, subpopulation structures and the interplay of cell cycle with pluripotency.

[Response: Such cycles would not produce temperature variations and power surges as extreme as Harms found them to have been.58 Certainly, we would not expect to see thousandfold variations in the ratio of 235U to 238U over distances of less than a thousandth of an inch, especially after 2 billion years.

For example, data may fluctuate depending on cell type, timing of data collection (during the cell cycle, or diurnal, seasonal, or annual variations), developmental stage, and various external conditions.

Unfortunately, a little variation is typical: «The average cycle is 28 days — that's 28 days between the first day of one period and the first day of your next period — but anywhere in between 24 and 31 days is considered normal,» says Veronica Lerner, MD, assistant professor of obstetrics and gynecology at NYU Langone Medical Center.

This type of dieting has many variations ranging from the extreme almost zero carb diets to the feasible alternating day carb diets, also known as carb cycling.

This is what I do, a variation of it, 3x3x3 — have been cycling this training 8 - 12 weeks on, 1 week off again... all natural and breaking plateaus and best of all look great, cleaner looking than the gear heads

These findings suggest that variations in gonadal hormones during the menstrual cycle influence the experience of pain in healthy women.»)