Browsing University of Bergen Library by Journals "Science Advances"
Now showing items 1-20 of 25
-
A 39,600-year-old leather punch board from Canyars, Gavà, Spain
(Journal article; Peer reviewed, 2023)Puncture alignments are found on Palaeolithic carvings, pendants, and other fully shaped osseous artifacts. These marks were interpreted as abstract decorations, system of notations, and features present on human and animal ... -
Actions on sustainable food production and consumption for the post-2020 global biodiversity framework
(Journal article; Peer reviewed, 2021)Current food production and consumption trends are inconsistent with the Convention on Biological Diversity’s 2050 vision of living in harmony with nature. Here, we examine how, and under what conditions, the post-2020 ... -
Ancient DNA and osteological analyses of a unique paleo-archive reveal Early Holocene faunal expansion into the Scandinavian Arctic
(Journal article; Peer reviewed, 2024)Paleo-archives are essential for our understanding of species responses to climate warming, yet such archives are extremely rare in the Arctic. Here, we combine morphological analyses and bulk-bone metabarcoding to investigate ... -
Arctic Ocean Amplification in a warming climate in CMIP6 models
(Journal article; Peer reviewed, 2022)Arctic near-surface air temperature warms much faster than the global average, a phenomenon known as Arctic Amplification. The change of the underlying Arctic Ocean could influence climate through its interaction with sea ... -
Atmospheric circulation over Europe during the Younger Dryas
(Journal article; Peer reviewed, 2020)The Younger Dryas (YD) was a period of rapid climate cooling that occurred at the end of the last glaciation. Here, we present the first palaeoglacier-derived reconstruction of YD precipitation across Europe, determined ... -
A bending rigidity parameter for stress granule condensates
(Journal article; Peer reviewed, 2023)Interfacial tension plays an important role in governing the dynamics of droplet coalescence and determining how condensates interact with and deform lipid membranes and biological filaments. We demonstrate that an interfacial ... -
Cell identity and nucleo-mitochondrial genetic context modulate OXPHOS performance and determine somatic heteroplasmy dynamics
(Journal article; Peer reviewed, 2020)Heteroplasmy, multiple variants of mitochondrial DNA (mtDNA) in the same cytoplasm, may be naturally generated by mutations but is counteracted by a genetic mtDNA bottleneck during oocyte development. Engineered heteroplasmic ... -
Chlamydial contribution to anaerobic metabolism during eukaryotic evolution
(Journal article; Peer reviewed, 2020)The origin of eukaryotes is a major open question in evolutionary biology. Multiple hypotheses posit that eukaryotes likely evolved from a syntrophic relationship between an archaeon and an alphaproteobacterium based on ... -
Comment on "Dying in the Sun: Direct evidence for elevated UV-B radiation at the end-Permian mass extinction"
(Journal article; Peer reviewed, 2023)Liu et al. present evidence of increased abundance of UV-B–absorbing compounds in fossilized sporomorphs at the end-Permian mass extinction based on Fourier transform infrared (FTIR) spectroscopy. Their approach assumes ... -
Early human impacts and ecosystem reorganization in southern-central Africa
(Journal article; Peer reviewed, 2021-05-05)Modern Homo sapiens engage in substantial ecosystem modification, but it is difficult to detect the origins or early consequences of these behaviors. Archaeological, geochronological, geomorphological, and paleoenvironmental ... -
An ecological niche shift for Neanderthal populations in Western Europe 70,000 years ago
(Journal article; Peer reviewed, 2021)Middle Paleolithic Neanderthal populations occupied Eurasia for at least 250,000 years prior to the arrival of anatomically modern humans. While a considerable body of archaeological research has focused on Neanderthal ... -
Evolution of vegetation and climate variability on the Tibetan Plateau over the past 1.74 million years
(Journal article; Peer reviewed, 2020)The Tibetan Plateau exerts a major influence on Asian climate, but its long-term environmental history remains largely unknown. We present a detailed record of vegetation and climate changes over the past 1.74 million years ... -
GADL1 is a multifunctional decarboxylase with tissue-specific roles in β-alanine and carnosine production
(Journal article; Peer reviewed, 2020)Carnosine and related β-alanine–containing peptides are believed to be important antioxidants, pH buffers, and neuromodulators. However, their biosynthetic routes and therapeutic potential are still being debated. This ... -
Global distribution and evolutionary transitions of floral symmetry in angiosperms
(Journal article; Peer reviewed, 2023)Floral symmetry plays an important role in plant-pollinator interactions and may have remarkable impacts on angiosperm diversification. However, spatiotemporal patterns in floral symmetry and drivers of these patterns ... -
How is a turbidite actually deposited?
(Journal article; Peer reviewed, 2022)The deposition of a classic turbidite by a surge-type turbidity current, as envisaged by conceptual models, is widely considered a discrete event of continuous sediment accumulation at a falling rate by the gradually waning ... -
Human footprints provide snapshot of last interglacial ecology in the Arabian interior
(Journal article; Peer reviewed, 2020)The nature of human dispersals out of Africa has remained elusive because of the poor resolution of paleoecological data in direct association with remains of the earliest non-African people. Here, we report hominin and ... -
Insm1-expressing neurons and secretory cells develop from a common pool of progenitors in the sea anemone Nematostella vectensis
(Journal article; Peer reviewed, 2022)Neurons are highly specialized cells present in nearly all animals, but their evolutionary origin and relationship to other cell types are not well understood. We use here the sea anemone Nematostella vectensis as a model ... -
Mechanism of actin N-terminal acetylation
(Journal article; Peer reviewed, 2020)About 80% of human proteins are amino-terminally acetylated (Nt-acetylated) by one of seven Nt-acetyltransferases (NATs). Actin, the most abundant protein in the cytoplasm, has its own dedicated NAT, NAA80, which acts ... -
Models with higher effective dimensions tend to produce more uncertain estimates
(Journal article; Peer reviewed, 2022)Mathematical models are getting increasingly detailed to better predict phenomena or gain more accurate insights into the dynamics of a system of interest, even when there are no validation or training data available. Here, ... -
North Atlantic Oscillation in winter is largely insensitive to autumn Barents-Kara sea ice variability
(Journal article; Peer reviewed, 2021)Arctic sea ice extent in autumn is significantly correlated with the winter North Atlantic Oscillation (NAO) in the satellite era. However, questions about the robustness and reproducibility of the relationship persist. ...