Mostrando 2,521 - 2,540 Resultados de 5,585 Para Buscar '"Continente"', tiempo de consulta: 0.17s Limitar resultados
  1. 2521
    “…The focus is on cross-continental differences of reported positive, negative, unclear, or no associations. …”
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  2. 2522
    “…Some local-scale studies have suggested that groundwater pumping can draw modern groundwater downward and potentially pollute deep aquifers, but the prevalence of such pumping-induced downwelling at continental scale is not known. Here we analyse thousands of US groundwater tritium measurements to show that modern groundwater tends to reach deeper depths in heavily pumped aquifer systems. …”
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  3. 2523
    “…Here, we analyze a global database of Holocene paleotemperature records to investigate the spatiotemporal structure of the HTM. Continental proxy records at mid and high latitudes of the Northern Hemisphere portray a “classic” HTM (8–4 ka). …”
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  4. 2524
    “…Here, we show that of this amount, ¾ is stored >3 metre depth, but if partially mobilised by thaw, this large nitrogen pool could have continental-scale consequences for soil and aquatic biogeochemistry and global-scale consequences for the permafrost feedback.…”
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  5. 2525
  6. 2526
    “…Infections caused by helminths are responsible for severe public health problems and economic burden on continental scale. Well-timed and precise diagnosis of helminth infections is critical for taking by appropriate approaches for pathogen control. …”
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  7. 2527
    “…The oxygen isotope composition of quartz crystals shows the unequivocal continental crustal derivation of these melts, which approximate the minimum composition in the quartz-albite-orthoclase system. …”
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  8. 2528
    “…Informed analysis of policies related to food security, global climate change, wetland ecology, environmental nutrient flux, element cycling, groundwater weathering, continental denudation, human health, and others depends to a large extent on quantitative estimates of solute mass fluxes into and out of all global element pools including the enigmatic global aquifer systems. …”
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  9. 2529
    “…Here, we present a subdataset (7852 records) of American triatomine occurrences; an update to the most complete and integrated database available to date at a continental scale. New georeferenced records were obtained from a systematic review of published literature and colleague-provided data. …”
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  10. 2530
    por Pyle, William W.
    Publicado 1981
    Libro
  11. 2531
    por Crosby, Philip B.
    Publicado 1987
    Libro
  12. 2532
    por Collinson, D W
    Publicado 1983
    “…Perhaps the best known and most significant advances have resulted from the study of palaeomagnetism, which led to quantitative confirmation of continental drift and polar wandering through interpretation of the direction of remanent magnetism observed in rocks of different ages from different continents. …”
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  13. 2533
    por Collective
    Publicado 2015
    “…The venue will take place in the Hotel Continental Terme, Ischia, the largest island in the bay of Naples and a renown location for thermal spas and beaches. …”
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  14. 2534
    por Dar, Arnon
    Publicado 1999
    “…Geological records indicate that the exponential diversification of marine and continental life on Earth in the past 500 My was interrupted by many life extinctions. …”
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  15. 2535
  16. 2536
    “…Thus, the aim of this study was to genotype 15 SNVs in eight genes involved in the miRNA processing pathway in Mexican individuals and compare their frequencies across 21 populations from five continental groups. Methods: Genomic DNA was obtained from 399 healthy Mexican individuals. …”
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  17. 2537
    “…The results suggest at least three distinct management units of roe deer in continental Asia, although genetic admixture is evident in some border areas. …”
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  18. 2538
    “…PolyTE genotypes were used to compute allele sharing distances between individuals and to relate them within and between human populations. Populations and continental groups show high coherence based on individuals’ polyTE genotypes, and human evolutionary relationships revealed by these genotypes are consistent with those seen for SNP-based genetic distances. …”
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  19. 2539
    “…PURPOSE: In support of science and society, the USA National Phenology Network (USA-NPN) maintains a rapidly growing, continental-scale, species-rich dataset of plant and animal phenology observations that with over 10 million records is the largest such database in the United States. …”
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  20. 2540
    “…We estimate background mole fractions entering LA using observations from four “extra-urban” sites including two “marine” sites located south of LA in La Jolla (LJO) and offshore on San Clemente Island (SCI), one “continental” site located in Victorville (VIC), in the high desert northeast of LA, and one “continental/mid-troposphere” site located on Mount Wilson (MWO) in the San Gabriel Mountains. …”
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