Results 131 to 140 of about 12,883 (257)
ABSTRACT This paper examines regional and chronological variations in Acheulean handaxe morphology during Marine Isotope Stage 11 (c. 425–365 ka BP) in Britain. Using a data set of 737 handaxes from 13 securely dated sites in East Anglia and the Thames Valley, we apply three‐dimensional geometric morphometric analysis to examine morphological ...
Mark White +5 more
wiley +1 more source
Diversity and transmission processes of potentially pathogenic bacterial communities in the East Rongbuk Glaciers, Mt. Everest. [PDF]
Ma T +11 more
europepmc +1 more source
Radical Uncertainty and New Sector Emergence: An Action Theory of Co‐Creative Stakeholders
ABSTRACT For much of the past century, entrepreneurship scholars have sought to understand and assess the nature, role, and impact of uncertainty. While the sum total of this work has contributed valuable insights, radical uncertainty—characterized by dynamic conditions in which outcomes are unknowable at the time action must be taken—remains weakly ...
Parul Manocha +1 more
wiley +1 more source
We evaluated the influence of environmental factors on detection probability of ring‐necked pheasant broods surveyed during roadside surveys across 11 states. Wind speed, cloud cover, morning dew conditions, and soil moisture influenced detection probabilities and should be the focus of methodological or statistical control in future landscape‐scale ...
Adam K. Janke +4 more
wiley +1 more source
ABSTRACT Permafrost is rapidly degrading in the sporadic zone, including palsa mires in Scandinavia. Peatlands in the area have likely accumulated heavy metals from atmospheric deposition of industrial contaminants in the wider region. As the palsa mire chemical composition is not well known, and in other permafrost regions the permafrost thaw may ...
Joanna Katarzyna Jóźwik +7 more
wiley +1 more source
Glaciers in California's Sierra Nevada are likely disappearing for the first time in the Holocene. [PDF]
Jones AG +10 more
europepmc +1 more source
Photooxidation of 18‐Carbon Polyunsaturated Fatty Acids to Prepare Mono‐Hydroxylated Octadecanoids
We developed a fast and simple one‐step synthetic strategy to produce mono‐hydroxylated metabolites based on the photosensitized oxidation of 18‐carbon polyunsaturated fatty acids (PUFAs). This approach could likely be extended to other PUFAs, suggesting that photosensitized oxidation could be employed to rapidly prepare hydroperoxides from multiple ...
Johanna Revol‐Cavalier +2 more
wiley +1 more source
Linkages Between Trace Elements and Bacterial Communities in Glacial Freshwater Systems of Zhongar Alatau National Park, Kazakhstan. [PDF]
Pániková L +4 more
europepmc +1 more source
Predicting potential Arctic kelp distribution and lower‐depth biomass from seafloor irradiance
Abstract Kelps have an extensive distribution in Arctic coastal waters. However, quantifying their role in the Arctic food web and carbon cycle is challenged by the scarcity of documented geographical distribution, standing stocks and production. Here we present a framework based on an empirical function to predict the potential kelp distribution and ...
Laura Castro de la Guardia +13 more
wiley +1 more source

