Sentences with phrase «from present populations»

To do this we would need to compare DNA from present populations with genetic material from ancient human remains — a political hot potato in some regions, including the US (see «The legal fight over prehistory»).

Germany alone is projected to lose 8 million by 2050, a drop of nearly 10 percent from its present population of 82.5 million — that's a loss roughly equal to the populations of its five biggest cities combined.

Not exact matches

We've created a series of charts to show seven age cohorts of the employed population from 1948 to the present.

This report presents detailed statistical information on the US Temporary Protected Status (TPS) populations from El Salvador, Honduras, and Haiti.

What reason, can ANYBODY offer, for the need to allocate more land for the Jews returning from Europe after WWII when the population density of Israel at that time was about 1 / 4th that of present day Luxembourg (200 / km ^ 2)?

The present book, subtitled «How Dying Populations and Immigrant Invasions Imperil Our Country and Civilization,» is a thesaurus of quotations from people on the variegated left who, whether they mean it or are just playing radical games, have declared war on our country, Western civilization, and common sense.

From present evidence it appears that both the Comsat Interim Committee and the Soviet Communications satellite system are to be used initially for point - to - point relay purposes, i.e. it is not intended that they should broadcast TV and radio directly to populations.

The former are needed to remind us that with our present population even our most basic needs can not be met unless we find technologically advanced ways of intensive production from a diminishing base.

It is in Asia, the great land mass which extends from the Mediterranean eastwards to the Pacific, that about three quarters of the world's present population is found.

12 percent of Norway's present population are not descended from African slaves brought to labor in Norway.

Similarly to a trusted justice system, other requirements that are commonly present in «one person, one vote» systems are based around trusted institutions, for example excluding mentally unstable citizens from voting would require that the population generally and overwhelmingly trust the society's health system.

The report concludes that to prevent Britain's population from reaching 70million net migration levels need to be reduced by 75 % from the present level of 237,000 people per year.

A collection of video interviews has been made available on the Garrett Hardin Society that presents Garrett Hardin's views on a variety of subjects, from population to national sovereignty.

It may seem like splitting hairs, but without a clear Danish signal, it was much harder to separate Danish Viking patterns from those of another northern European population present in Britain: Just a few hundred years before the Vikings, Anglo - Saxons from northern Germany had landed in England, and many had settled.

All non-Africans stem from one major founding population, the studies agree, but earlier human migrations are also recorded in present - day people's DNA, one study finds.

The studies present data from genetically diverse and previously unrepresented populations.

However, other recent studies do confirm that all present - day non-African populations branched off from a single ancestral population in Africa approximately 60,000 years ago.

These 19 PMI countries along with 13 others in sub-Saharan Africa that did not receive PMI funding presented the authors with a «quasi-experiment» that enabled them to analyze large population - representative data from the Demographic and Health Surveys and Malaria Atlas Project using a difference - in - differences method.

If I had to choose one, I'd say it's the rise in caloric availability from 3,200 per capita per day in the early 1980s to the present 3,900 per day today — roughly twice the population's need.

Another team, analyzing DNA from present - day and ancient Americans, reports that Native Americans came from a single ancestral population.

They found that he is as genetically similar to present - day East Asians as to ancient genomes found in Western Europe and Siberia, suggesting that the population he was part of split from the ancestors of both Europeans and East Asians, prior to their divergence from each other.

Dr Lea added: «The Nottingham study presents a unique set of reliable data from a controlled population which is free from these factors.

In order to compare the ancient humans to present - day people, the team also generated genome - wide data from about 2,400 humans from almost 200 diverse worldwide contemporary populations.

While the model suggests that present - day Europeans received contributions from at least three ancestral populations, it also suggests that Early Near Eastern farmers carried genetic material that falls outside the typical non-African variation.

Lehigh University is located within the «hybrid zone,» a narrow band from northern New Jersey to Kansas where this population of hybridized chickadees reside, which presents a unique opportunity to study them.

«Our study suggests that the cumulative survival from hatchling to maturity, which may take 30 years, combined with present - day climate effects on mature females, has a greater influence on annual nesting population size than does the exclusive impact of survival during the first year of life as hatchlings,» Saba said.

While the Devil's Gate samples show high genetic affinity to the Ulchi, fishermen from the same area who speak the Tungusic language, they are also close to other Tungusic - speaking populations in present day China, such as the Oroqen and Hezhen.

A Number of Us Two big questions present themselves as population reemerges from the shadows: Can any feasible downshift in population growth actually put the environment on a more sustainable path?

«By the Bronze Age, populations had ancestry from many sources and broadly resembled present - day ones.»

«We found that the relatively homogeneous population seen across western Eurasia today, including Europe and the Near East, used to be a highly substructured collection of people who were as different from one another as present - day Europeans are from East Asians,» said David Reich, professor of genetics at Harvard Medical School and co-senior author of the study.

According to the scientist, the results reveal that the populations of these amphibians with a tradition of coexisting with the predator for 30 years (between 10 and 15 generations of frogs) present a pattern of activity that is totally different from the populations with less coexistence or no coexistence with the red swamp crayfish.

«We were also surprised to note that our patients who were presenting from the community were almost twice as likely to be obese as the general population in Massachusetts (34 percent compared to 23 percent).

A comparison of the genomes of present - day southern African populations confirms that our ancestors did not originate from a single group

«We do not have at the present time an analysis to tell us what would be an appropriate size of the population of chimpanzees that would need to be kept on hand should the need arise from some sort of new pandemic for their use,» said Collins.

The interactions among plants from different populations, the multiple stressors in Western riparian ecosystems, and the introduction of the leaf beetle present a complex model.

The study found that the GYPB - A Dantu hybrid was present in some people from East Africa, in Kenya, Tanzania and Malawi, but that it was not present in volunteers from West African populations.

Researchers from the ESRC Centre for Population Change at the University of Southampton and Statistics New Zealand have published an article in the Routledge journal Population Studies arguing that Bayesian methodology, a statistical tool introduced by Rev. Thomas Bayes in the 18th Century, is vital in providing solutions to many difficult statistical problems, particularly those presented by 21st Century population studies.

Other changes, though highly beneficial to the region's human population, present challenges from a conservation standpoint.

The researchers presented these odor samples to 74 unrelated conspecifics, as identified from extensive pedigree data available for this population, and observed their behavioral response.

This led to a genetic mixture that resulted in the Yamnaya culture: horse - borne Steppe herders that swept into Western Europe around 5,000 years ago, arguably heralding the start of the Bronze Age and bringing with them metallurgy and animal herding skills, along with the Caucasus hunter - gatherer strand of ancestral DNA — now present in almost all populations from the European continent.

At present rates of screening and treatment, the researchers predict that HIV prevalence will decline from 19 percent to 14 percent of the population in the next 10 years.

Professor Daniel Bradley, leader of the Trinity team, said: «This is a major new piece in the human ancestry jigsaw, the influence of which is now present within almost all populations from the European continent and many beyond.»

Of course, present - day populations in South America haven't been sampled very well, so it's possible that scientists will find descendants of some of the supposedly lost lineages as they collect more genetic samples from living people.

* Because modern humans are believed to have originated in Africa, if Neandertals diverged from modern humans before present - day populations began to differentiate, one would expect Neandertal sequences to match sequences from non-Africans and Africans to the same extent.

Although they occur at low densities, the golden eagle can be found throughout the western third of North America, from the western edge of the Great Plains to the Pacific Coast and from Alaska south to Mexico; a small population also is present in northeastern Canada.

A special March supplement to Medical Care presents updates from the Agency for Healthcare Research and Quality's (AHRQ) Multiple Chronic Conditions (MCC) Research Network, formed to address knowledge gaps and research challenges in meeting the complex health care needs of this growing population.

«What's particularly noteworthy about this work is we were able to present an integrative link from genetics, cell - and animal - based experiments, all the way up to clinical outcomes in large human population,» Liu said.

Researchers investigating the impacts of the Deepwater Horizon oil spill on sea turtles found that over 320,000 juvenile sea turtles from populations throughout the Atlantic Ocean were likely present in the northern Gulf of Mexico during the 87 - day oil spill.

In consequence, this population will typically be of later spectral types, which presents lower fractions of binary systems (Lada 2006); hence the impact of false alarms from faint EBs is less for deeper samples.

In 2012 a complete analysis of the Y chromosome (transmitted from fathers to their sons) showed that Ötzi's paternal genetic line is still present in modern - day populations.