Sentences with phrase «frequency over the study»

Rainstorms increased in frequency over the study period, and the authors suggest that this, as well as the synchronization between rainstorms and chick vulnerable periods, is likely to increase with climate change.
Tracking changes in Arctic cyclone activity through time, Vavrus calculated a statistically significant, though minor, increase in extreme Arctic cyclone frequency over the study period, with increases strongest near the Aleutian Islands and Iceland.

Not exact matches

«These things have evolved because they're good for the parents, but they sometimes, not [with] high frequency, but sometimes carry over» into offspring, study researcher William Rice, an evolutionary geneticist at the University of California, Santa Barbara, told LiveScience.
The fact that all couples over 44, in the recent study, had a median frequency of intercourse of almost once a week, shows that there's a lot of life left in that age group!
As with magnitude, the impact frequency reported in the current study fell between those of 6 - to 9 - year - olds and high school athletes, with the average player experiencing 240 impacts over the course of a season compared to 107 impacts per season for 6 - to 9 - year - old players, and 565 for high school players.
Warmer temperatures and increased fire frequency over the next century could eliminate the Joshua tree from 90 percent of its current range within Joshua Tree National Park, according to another USGS study.
For the study, the researchers gathered a long - term data set of residential lawn - watering frequency and lawn - watering behaviors, determined the scale of weekly lawn - watering frequency with water restrictions alone, and tested to determine if adding the weather - based conservation strategy could improve lawn irrigation efficiency and water savings over water restrictions alone.
Microwave atomic clocks have been the de facto standards for precision time and frequency metrology over the past 50 years, finding widespread use in basic scientific studies, communications, and navigation.
THE STUDY «Climate Change and War Frequency in Eastern China Over the Last Millennium,» by David Zhang et al., published in the August 2007 issue of Human Ecology.
The frequency of the risk C variant in Spanish people over the age of one hundred was 47.0 %, lower than in healthy people that were taken as a control sample in the study (52.9 %) and individuals with cardiovascular disease (55.1 %).
The researchers looked at the community - based Oregon Sudden Unexpected Death Study (Oregon SUDS) database from 2002 to 2015 to discover the frequency to which SCA occurred during or within one hour after sexual activity for all persons over the age of 18.
All study participants completed a food frequency questionnaire, detailing how much and how often they had eaten 187 food items over the preceding four weeks.
In a randomized, double - blind, sham - controlled, multi-center study with a parallel design, Shirota et al (2013) examined the effectiveness and stimulation frequency dependence of rTMS over the supplementary motor area (SMA) in PD.
Although the primary studies used in these meta - analyses are highly overlapping and the variability in TMS stimulus parameters and treat treatment paradigms complicates the interpretation of research findings, these meta - analyses also support the use of high - frequency TMS over the left dorsolateral prefrontal cortex.
The new study, published in Science, is the first to make a global estimate of how both the frequency and severity of coral reef bleaching have changed over the last 40 years.
In another study just published, sexual frequency in over 2,000 men and women was inversely correlated to the blood concentration of an amino acid adverse to heart health called homocysteine.
The ketogenic diet is a high - fat / low carbohydrate [and low protein] diet that has been used since the 1920's to treat childhood epilepsy, with some studies suggesting that over 50 % of patients experience significant reductions in seizure frequency.
Diet was assessed at phases 3, 5, 7 and 9 using a 127 - item machine - readable semi-quantitative food frequency questionnaire (FFQ) which originates from the tool used in the US Nurses» Health Study, a self - administered questionnaire on habitual diet over the past 12 months30, 31.
Scientific studies have shown that natural disasters have been increasing in frequency over the last few decades.
The study used data about human - animal interactions, physical activity, frequency of doctor visits and health from the 12th wave (2012) of the Health and Retirement Study, a panel study that surveys a representative sample of approximately 20,000 people in America over the age of 50 every two ystudy used data about human - animal interactions, physical activity, frequency of doctor visits and health from the 12th wave (2012) of the Health and Retirement Study, a panel study that surveys a representative sample of approximately 20,000 people in America over the age of 50 every two yStudy, a panel study that surveys a representative sample of approximately 20,000 people in America over the age of 50 every two ystudy that surveys a representative sample of approximately 20,000 people in America over the age of 50 every two years.
My comprehensive study of Texas rain events of 20 + inches from 1948 - 2002 found no overall change in frequency over the period.
«Century of Data Shows Intensification of Water Cycle but No Increase in Storms or Floods Released: 3/15/2006 12:13:21 PM» (excerpt) A review of the findings from more than 100 peer - reviewed studies shows that although many aspects of the global water cycle have intensified, including precipitation and evaporation, this trend has not consistently resulted in an increase in the frequency or intensity of tropical storms or floods over the past century.
Multi-centennial-scale changes in East Asian typhoon frequency during the mid-Holocene This study reconstructs a record of typhoon frequency over the Korean Peninsula during the mid-Holocene using mineral components and diatom assemblages in deposits of Lagoon Hyangho, located on the east coast of the peninsula.
«The frequency of thunderstorms and high winds decreased gradually over the time period we studied, but not hail,» said Qinghong Zhang.
Drought is expected to occur 20 - 40 percent more often in most of Australia over the coming decades.6, 18 If our heat - trapping emissions continue to rise at high rates, 19 more severe droughts are projected for eastern Australia in the first half of this century.6, 17 And droughts may occur up to 40 percent more often in southeast Australia by 2070.2 Unless we act now to curb global warming emissions, most regions of the country are expected to suffer exceptionally low soil moisture at almost double the frequency that they do now.3 Studies suggest that climate change is helping to weaken the trade winds over the Pacific Ocean, with the potential to change rainfall patterns in the region, including Australia.20, 21,16,22
Scientific studies show there is little if any linkage between hurricane frequency and severity with CO2 in the atmosphere, but an objective, common - sense, easy to understand analysis of hurricanes over the past 110 years, also demonstrates that climate change is not affecting the number or severity of hurricanes.
Winter storms have increased in frequency and intensity since the 1950s, 29 and their tracks have shifted northward over the United States.30, 31 Other trends in severe storms, including the intensity and frequency of tornadoes, hail, and damaging thunderstorm winds, are uncertain and are being studied intensively.
«Relatively cool waters in the eastern Pacific often result in stubborn summer high - pressure systems over the eastern states that block storms, reducing the frequency of precipitation below normal,» noted study co-author Richard Healy of the Woods Hole Oceanographic Institution, Woods Hole, Mass. «Less frequent storms result in higher surface and atmospheric temperatures that then feedback on the atmospheric circulation to further reduce storm frequency and raise surface temperatures even more.»
Our study has been motivated by the finding of decadal - scale persistence of drought conditions over North America (Woodhouse and Overpeck 1998; Stahle et al. 2007; Dai 2011) and low - frequency characteristics of fire cycles (e.g., Swetnam and Betancourt 1998; Westerling et al. 2003; Brown et al. 2005; Farris et al. 2010), as reconstructed from lake sediments and fire - scar.
This study determined that flooding frequency over 5,500 years was tied to solar activity across inter-annual and multi-centennial timescales.
Interestingly, spring — in addition to being a season with increasing frequency of heavy rainfall — also has the strongest increase in temperature over most of the northern part of the region studied, he says.
This study explores the causes of the recent decline of Atlantic major hurricane frequency over the period 2005 - 2015, using various observational datasets and modeling results from a 500 - year control simulation of a fully coupled earth system model, GFD's ESM2G.
For example, our 2015 study projects an increase in tropical storm frequency in the Northeast Pacific and near Hawaii, and a decrease in category 4 - 5 storm days over much of the southern hemisphere basins and parts of the northwest Pacific basin — both at variance with the global - scale projected changes.
Huntington is the author of a recent review of more than 100 peer - reviewed studies showing that although many aspects of the global water cycle — including precipitation, evaporation and sea surface temperatures — have increased or risen, the trend can not be consistently correlated with increases in the frequency or intensity of storms or floods over the past century.
An implication of the GFDL studies is that if the frequency of tropical cyclones remains the same over the coming century, a greenhouse - gas induced warming may lead to an increasing risk globally in the occurrence of highly destructive category - 5 storms.
The Washington Supreme Court adopted Admission and Practice Rule 28 in 2012 to create LLLTs following a 2003 study by the Task Force on Civil Equal Justice Funding which found that despite a high frequency of civil legal problems in low - income households, over 85 % did not have any legal assistance.
The study shows that Indians are risk averse in general and they prefer low to medium risk investments such as bank FD, real estate, gold etc. over equity or equity - linked products.It was found that the most common frequency of premium payment is annual with an average premium sum of Rs. 13000 and that 72 % people buy the insurance products from their banks.
Our over all goal is to collect and analyze data to compile findings into a case study for review in the scientific field, which will then hopefully broaden the acceptance of the paranormal Frequency about 1 post per month.
This befitting tribute to the Covenant was written by Delia and addressed to me on the inside cover of one of many Baha'i reading materials she had given me over the years for study and sums up the importance of the study of Baha'u» llah's Covenant and it's ability to transform our v Frequency about 2 posts per week.
The first, which drew data from a 23 - year study of over 25,000 people, found that more sex is linked to higher levels of happiness, but only until the frequency reaches about once a week.
Two studies, each with over 100 married couples found, consistent with previous research, a weak association between sexual frequency and explicit measures of satisfaction.
Specifically, neurotic individuals are often less sexually satisfied in their relationships, and these lower levels of sexual satisfaction account for lower levels of relationship satisfaction.2 In a recent study, 72 newlyweds reported on their levels of neuroticism, frequency of sex, and relationship satisfaction over 4 years.
The present study aimed to examine the relationship between the type and frequency of childhood adversity exposure and suicidal behaviour over the life trajectory of South Africans, given that there are no published nationally representative data that may be useful in informing clinical practice and policy.
The frequency of self - harm episodes decreased over the study period for the entire cohort.
As we describe in a forthcoming study in The Journal of Marriage and Family, the association between a non-traditional division of labor at home and couples» sexual satisfaction and frequency has changed dramatically over the past two decades.
However, such studies do not document the frequency and range of outcomes into adulthood because dysfunctions may attenuate over time or new disorders may emerge.
A study that follows people over time can do a better job of establishing if hair removal came before the STD — and investigators could take more risk factors into account, including condom use, HPV vaccination, and frequency of sexual contact.
Some studies also show that not only frequency of contact but also the relationship quality between child and non-custodial parent has improved over time (Amato and Gilbreth 1999).
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