Loading...
  • Neanderthals
  • Scientists say the new discovery offers the possibility that a spell of interbreeding between Neanderthals and early humans occurred at this time and in this region. (time.com)
  • In other words, climate change facilitated an inviting move over and out from the Levant - and from there onward humans were able to disperse, a scattering that led them to eventually meet other hominins like Neanderthals and Denisovans and mix up the gene pool in a way that's reflected in our DNA today. (inverse.com)
  • bacteria
  • Having traveled so far back in time using ancient tartar, some of the same scientists have embarked on a more ambitious project: using the DNA from the bacteria in tartar to figure out how humans settled the 10 million square miles of Polynesia. (theatlantic.com)
  • Scientist have analyzed specific pathogens-such as Helicobacter pylori in the gut- as proxies for human migration before, but Weyrich and Eisenhofer hope to extract more information by studying the overall community of mouth bacteria. (theatlantic.com)
  • Use these social-bookmarking links to share Gut bacteria reveals human migrations . (abc.net.au)
  • The bacteria and its human host then disseminated northeast into Siberia between 20,000-30,000 years ago and throughout eastern Asia between 4,000-10,000 years ago. (innovations-report.com)
  • Scientists in the US have developed a laser technique to selectively wipe out viruses and bacteria whilst leaving human cells unharmed. (thenakedscientists.com)
  • Although it is not clear at the moment why there is a large difference in laser intensity for inactivation between human cells and micro-organisms such as bacteria and viruses, the research so far suggests that ISRS will be ready for use in disinfection and could provide treatments against the worst, often drug-resistant, bacterial and viral pathogens," says Tsen. (thenakedscientists.com)
  • Homo
  • This discovery indicated that Homo sapiens trekked into Asia far earlier than previously known and much earlier than into Europe, providing important evidence for the study of dispersal routes of modern humans. (phys.org)
  • researchers
  • Phys.org) -A pair of demographic researchers at the Vienna Institute of Demography has quantified for the first time global human migration numbers. (phys.org)
  • To conduct the study, the researchers began with a statistical approach that was originally developed to infer divergence times for related but distinct species, such as the human, chimpanzee and gorilla. (phys.org)
  • Values obtained by analysing human skeletons referenced against the range of environmental isotope variability enable researchers to trace back the location inhabited by the individual or group. (sciendo.com)
  • In addition to human DNA indicators and to further assist scientists in replacing fossils with DNA, researchers have now found that they are able to search for patterns of migration within tiny microorganisms that have hitched a ride on humans during their migrations. (blogspot.com)
  • migratory
  • Languages evolve slowly overtime and may even follow human migratory patterns. (eurekalert.org)
  • In this review, we have aimed to throw light on some of the promising molecular markers which are very much in application now-a-days for not only understanding the evolutionary background and ancient migratory routes of humans but also in the field of forensics and human health. (frontiersin.org)
  • The migratory abilities of motile human spermatozoa in vivo are essential for natural fertility, but it remains a mystery what properties distinguish the tens of cells which find an egg from the millions of cells ejaculated. (pnas.org)
  • With this new research, geneticists and scientists should be able to not only produce complete migratory maps, but also track human ancestry trees to fill in some of the questions about our history. (blogspot.com)
  • climate change
  • Speicher works on-the-ground in some of the world's most vulnerable areas where human migration and climate change converge to help bring relief from immediate threat and solutions to long term risks. (triplepundit.com)
  • In the context of ongoing human suffering, it may seem counter-intuitive, but the refugee crisis will never be solved until and unless we deal with climate change. (triplepundit.com)
  • In 1990, the Intergovernmental Panel on Climate Change (IPCC) noted that the greatest single impact of climate change could be on human migration-with millions of people displaced by shoreline erosion, coastal flooding and agricultural disruption. (undp.org)
  • While the scientific argument for climate change is increasingly confident, the consequences of climate change for human population distribution are unclear and unpredictable. (undp.org)
  • With so many other social, economic and environmental factors at work establishing a linear, causative relationship between anthropogenic climate change and forced migration has, to date, been difficult. (undp.org)
  • gradual
  • Despite this high level of interest, few quantitative studies have investigated the potential effects of environmental factors on migration, particularly in the developing world and for gradual but pervasive forms of environmental change. (repec.org)
  • With the gradual development of intelligence, human got curious to know his origin and evolutionary background. (frontiersin.org)
  • mitochondrial
  • Co-author Professor Barry Marshall, a microbiologist at the University of Western Australia , says H. pylori is a lot like mitochondrial DNA, which is also used to investigate human migration patterns. (abc.net.au)
  • Previous studies of human demography have primarily relied on mitochondrial DNA from the maternal line or Y-chromosome data passed from fathers to their sons, but those studies are limited by small numbers of genomic positions. (phys.org)
  • The use of a good number of uniparental and biparental markers for genetic diversity studies is a recent trend in which Y-haplogroup, mitochondrial DNA (mtDNA), human leukocyte antigen (HLA) and killer-cell immunoglobulin-like receptor (KIR) are the promising ones. (frontiersin.org)
  • Use of Y Chromosome and Mitochondrial DNA Population Structure in Tracing Human Migrations. (blogspot.com)
  • demographic
  • The report looks closely at three country examples: Ethiopia, Bangladesh and Mexico, all countries with very different climatic, livelihood, demographic, migration and development patterns. (worldbank.org)
  • progenitor
  • Ostensibly due to civil wars, religious extremism, and political unrest , there is one underlying progenitor to forced human migration. (triplepundit.com)
  • Although cefazolin is the most commonly used antibiotic drug in arthroplasty antibiotic prophylaxis worldwide [ 3 , 14 ], there exist only a few reports of how it affects human osteoblasts and its progenitor cells and, therefore, how it may affect postoperative bone healing [ 15 , 16 ]. (hindawi.com)
  • trends
  • In their paper published in the journal Science , Guy Abel and Nikola Sander describe how they were able to gather migration numbers for 196 countries and some of the trends they discovered in doing so. (phys.org)
  • fossil
  • From 2011 to 2013, systematic excavations yielded 47 human teeth and an abundant fossil mammalian assemblage. (phys.org)
  • Four clear stratigraphic layers were consistently identified in the whole excavated regions, with a total thickness of more than 250 cm. 47 human teeth and an abundant fossil mammalian assemblage were unearthed from layer 2 of region I and region II. (phys.org)
  • The Daoxian teeth place our species in southern China 30,000 to 70,000 years earlier than in the eastern Mediterranean or Europe", said LIU Wu, "We hope our Daoxian human fossil discovery will make people understand that East Asia is one of the key areas for the study of the origin and evolution of modern humans ," Liu said. (phys.org)
  • How does the DNA evidence relate to the fossil evidence for human migration patterns? (photoireland.org)
  • The new discovery changes that: At a desert site called Al Wusta, alongside fossils of hippopotamus and fresh-water snails suggesting that part of the desert was once an ancient lake, the team also found stone tools and, most importantly, a well-preserved, 3.2-centimeter-long fossil that looked a lot like a human finger. (inverse.com)
  • Beringia
  • The authors first coded a linguistic dataset from the languages, modeled the relationship between the data, and then modeled it against migration patterns from Asia to North America, or out-of-Beringia. (eurekalert.org)
  • Although the authors cannot conclusively determine the migration pattern just from these results, and state that this study does not necessarily contradict the popular tale of hunters entering the New World through Beringia, it at the very least indicates that migration may not have been a one-way trip. (eurekalert.org)
  • Sicoli MA, Holton G (2014) Linguistic Phylogenies Support Back-Migration from Beringia to Asia. (eurekalert.org)
  • Therefore, humans would have lost some intestinal parasites while crossing Beringia. (unl.edu)
  • Americas
  • Evidence is provided here from published data of pre-Columbian sites for the peopling of the Americas through trans-oceanic or costal migrations. (unl.edu)
  • chromosome
  • Mokrousov s team hypothesized that, given the strong gender bias of TB infectivity and the likely family-based mode of TB transmission during pre-industrialized times, M. tuberculosis dissemination has reflected the unidirectional inheritance of the paternally transmitted human Y chromosome. (innovations-report.com)
  • To test this hypothesis, the authors compared the genetic profiles of a common form of M. tuberculosis, called the Beijing genotype, with known patterns of prehistoric and recent human migrations, as well as with global patterns of Y-chromosome variation. (innovations-report.com)
  • Previously, with the exception of the Paleoafrican Y-chromosome clades A and B, all other human Y chromosomes fell into three separate clades C, DE (also known as YAP), and F. Now, C and F are shown to be united by a common ancestory into a new clade CF. (blogspot.com)
  • early
  • It's surprising to find [modern humans] showing up so early in one of the coldest and driest parts of mid-latitude Europe," said study co-author John Hoffecker, an archaeologist at the University of Colorado at Boulder. (nationalgeographic.com)
  • Map of early human migrations. (theconversation.com)
  • Results show an early dispersal of Na-Dene along the North American coast with a Yeniseian back migration through Siberia and a later dispersal of North American interior Na-Dene languages. (eurekalert.org)
  • While they have been little studied, the Islands of the Four Mountains could offer a rich trove of information to West and her colleagues about early human migration. (phys.org)
  • Notably, although fully modern humans were already present in southern China at least as early as 80,000 years ago, there is no evidence that they entered Europe before 45,000 years ago. (phys.org)
  • Human Mobility at the early Neolithic settlement of Vaihingen, Germany: evidence from strontium isotope analysis. (sciendo.com)
  • To better understand the effect of cefazolin on the early stages of bone healing, the modulation of cell migration and proliferation and its reversibility was evaluated and compared to cell cultures without drug administration. (hindawi.com)
  • refugees
  • In their report, Abel and Sander also note that though migration due to refugees seeking relief from war or other disasters makes the news, it generally accounts for a very small percentage of permanent migration numbers. (phys.org)
  • Refugees from disasters and expropriations have limited control over whether environmental changes will produce migration. (springer.com)
  • evolution
  • Various informative and polymorphic genetic markers were discovered and the gene frequency data emerging out from their analyses largely contributed to the successful study of evolution and diversity of human races worldwide. (frontiersin.org)
  • In the paper , experts in archeology and human evolution announced that a fossilized finger bone that was found in the Nefud Desert of Saudi Arabia is much older than most experts would expect it to be. (inverse.com)
  • Before now, the Arabian Peninsula hasn't really been considered a hotbed of human evolution findings. (inverse.com)
  • Demography
  • Environmental Influences on Human Migration in Rural Ecuador ," Demography , Springer;Population Association of America (PAA), vol. 50(4), pages 1217-1241, August. (repec.org)
  • The impact of origin community characteristics on rural-urban out-migration in a developing country ," Demography , Springer;Population Association of America (PAA), vol. 24(2), pages 191-210, May. (repec.org)
  • Going home after Hurricane Katrina: Determinants of return migration and changes in affected areas ," Demography , Springer;Population Association of America (PAA), vol. 47(4), pages 821-844, November. (repec.org)
  • bone
  • It's much easier, Weyrich says, to convince museums to give up some tartar than to sacrifice a bone for human DNA analysis. (theatlantic.com)
  • An 88,000-year-old finger bone places human ancestors in Arabia earlier than previously believed. (the-scientist.com)
  • The results confirmed that the bone belonged to a human. (the-scientist.com)
  • Drugs may have a significant effect on postoperative bone healing by reducing the function of human mesenchymal stromal cells (hMSC) or mature osteoblasts. (hindawi.com)
  • modern
  • It turned out to belong to yet another population, not Neandertal or modern human, but from the same time period. (simonsfoundation.org)
  • Fig.1 47 fully modern human teeth and the Fuyan Cave in Daoxian, southern China. (phys.org)
  • Nomadic movements are normally not regarded as migrations as the movement is generally seasonal , there is no intention to settle in the new place, and only a few people have retained this form of lifestyle in modern times. (readtiger.com)
  • Cave
  • The presence of moderate basal bulging as well as longitudinal grooves in the buccal surface of canines, premolars and molars from other Late Pleistocene samples such as Xujiayao, Huanglong Cave, Qafzeh or Dolni Vestonice make Daoxian teeth morphologically closer to middle-to-late Late Pleistocene and even contemporary human samples. (phys.org)
  • internal
  • Substantial internal migration can also take place within a country, either seasonal human migration (mainly related to agriculture and to tourism to urban places), or shifts of population into cities ( urbanisation ) or out of cities ( suburbanisation ). (readtiger.com)
  • people
  • Imagine the social tension with a half-billion people in migration. (triplepundit.com)
  • It also shows that migration in African is generally intra-continental, and that people from Europe tend to migrate to a diverse number of countries. (phys.org)
  • Widely available data on the number of people living outside of their country of birth do not adequately capture contemporary intensities and patterns of global migration flows. (phys.org)
  • There are studies comparing languages to track the migration of people, including one from a New Zealand research group examining migration across the Pacific. (sciblogs.co.nz)
  • Professor Lisa Matisoo-Smith FRSNZ has been awarded the Mason Durie Medal by Royal Society Te Apārangi for her ground-breaking work that has, through strong relationships with New Zealand's Indigenous people, reshaped our understanding of the last great human migration into the Pacific. (royalsociety.org.nz)
  • To Elizabeth Anne Matisoo-Smith for her ground-breaking work that has, through strong relationships with New Zealand's Indigenous people, reshaped our understanding of the last great human migration into the Pacific. (royalsociety.org.nz)
  • Human migration is the movement by people from one place to another with the intentions of settling, permanently or temporarily in a new location. (readtiger.com)
  • Also, the temporary movement of people for the purpose of travel, tourism, pilgrimages, or the commute is not regarded as migration, in the absence of an intention to live and settle in the visited places. (turkcewiki.org)
  • ancestors
  • They analyzed only six genomes, but made use of the fact that these genomes contain traces of genetic material from thousands of human ancestors , which have been assembled into new combinations over the millennia by genetic recombination . (phys.org)
  • mobility
  • Human mobility on the Brazilian coast: an analysis of strontium isotopes in archaeological human remains from Forte Marechal Luz sambaqui. (sciendo.com)
  • suggests
  • Anikovich's finding suggests that humans may have migrated to Eastern Europe slightly before settling the central and western regions of the continent. (nationalgeographic.com)