Sentences with phrase «observed over a number of years»

While the narratives hopefully resonate as true, both accounts are based on a collection of students observed over a number of years rather than one particular student.

Not exact matches

While a number of simple measures of valuation have also been useful over the years, even metrics such as price - to - peak earnings have been skewed by the unusual profit margins we observed at the 2007 peak, which were about 50 % above the historical norm - reflecting the combination of booming and highly leveraged financial sector profits as well as wide margins in cyclical and commodity - oriented industries.

Neurological milestones are outlined in «The Wonder Weeks», a book by Dutch researchers, psychologists Franz Plooij and Hetty Van Der Rit, who observed many children in their homes over a number of years.

After a number of years of observing the deteriorating conditions in the Town of Ramapo in quality of life issues such as zoning, over-development, over stressed infrastructure and litter he decided not to stand by and watch what was happening, but to become involved.

By observing lizards in the field, Sinervo and a colleague showed that the number of lizards employing the strategies of aggression, cooperation, and deception fluctuated over the course of 6 years, the dominant strategy changing as new lizards were born.

Just over a year after the attacks, as the court case against Anders Breivik was intensely covered in the media, a new — although smaller — increase in the number of trauma - and stressor - related disorders was observed.

After analyzing the effectiveness of a variety of popular diet regimens from around the world and observing both the eating habits of my fellow Danes and what kept them both satisfied and lean, I was amazed to discover that the traditional Danish diet gets top marks in a number of categories essential for helping us to fight off those pounds that seem to creep up on us over the years.

Over the years I have refined my favourite drink down to a number of ingredients through a process of trial and error; observing both the way I felt and the way the beverage tasted.

Although a proportion of the ROH observed in both English bulldog and Standard Poodle can be attributed to natural selection pressures occurring over thousands of years [33, 34], the differences in ROH size and number are better explained by the comparative changes in outward appearance.

The exhibition focuses upon the extensive use of reproducible media which has been observed over the last ten years and proposes that the precursor of this phenomenon was the art of the late sixties and seventies, a period in which moving pictures formed the conceptual basis for the work of a number of artists.

a) atmospheric CO2 from human activity is a major bause of observed warming in the 1980's and 1990's, c) that warming is overstated due to a number of factors including solar effects and measurement skew d) the data going back 150 years is of little reliability because it is clustered so heavily in northeast america and western europe rather than being global e) the global climate has been significantly shifting over the last thousand years, over the last ten thousand years, and over the last hundred thousand years; atmospheric CO2 levels did not drive those changes, and some of them were rapid.

For the entire Northern Hemisphere, there is evidence of an increase in both storm frequency and intensity during the cold season since 1950,1 with storm tracks having shifted slightly towards the poles.2, 3 Extremely heavy snowstorms increased in number during the last century in northern and eastern parts of the United States, but have been less frequent since 2000.11,15 Total seasonal snowfall has generally decreased in southern and some western areas, 16 increased in the northern Great Plains and Great Lakes region, 16,17 and not changed in other areas, such as the Sierra Nevada, although snow is melting earlier in the year and more precipitation is falling as rain versus snow.18 Very snowy winters have generally been decreasing in frequency in most regions over the last 10 to 20 years, although the Northeast has been seeing a normal number of such winters.19 Heavier - than - normal snowfalls recently observed in the Midwest and Northeast U.S. in some years, with little snow in other years, are consistent with indications of increased blocking (a large scale pressure pattern with little or no movement) of the wintertime circulation of the Northern Hemisphere.5 However, conclusions about trends in blocking have been found to depend on the method of analysis, 6 so the assessment and attribution of trends in blocking remains an active research area.

The new hypotheses do appear to be substantially better than the ones they replace, but there has not been time to fully subject them to careful and sophisticated comparisons with observed reality over a number of years by which they can only gradually be proven.

The IPCC notes in its most recent scientific assessment that there are «[n] o robust trends in annual numbers of tropical storms, hurricanes and major hurricanes counts have been identified over the past 100 years in the North Atlantic basin,» and that there are «no significant observed trends in global tropical cyclone frequency.»

The Intergovernmental Panel on Climate Change reported in its most recent scientific assessment that «[n] o robust trends in annual numbers of tropical storms, hurricanes, and major hurricanes... have been identified over the past 100 years in the North Atlantic basin,» and that there are «no significant observed trends in global tropical cyclone frequency.»

Like Salvatore Del Prete implied, there have been a number of cold LIA - like events over the past 7500 years (like Dr. Abdussamatov's publications have observed), and we are due for another in coming decades.

Other quotes from your article: «He says that the increased solar brightness over the past 20 years has not been enough to cause the observed climate changes» «While the established view remains that the sun can not be responsible for all the climate changes we have seen in the past 50 years or so, this study is certainly significant,» «He added, however, that the study also showed that over the past 20 years the number of sunspots had remained roughly constant, while the Earth's temperature had continued to increase.»

The results showed that the children's aggressive behavior decreased during the course and especially over the following year - long practice phase, as did the number of negative mother — child interactions observed.