Dynamics of single mothers' semantic strategies in Anglophone non-fiction.

The article discusses how the increasing number of self-help books for single mothers is meeting the demand for positive narratives about their experiences, which are often stereotyped in the media. The books offer a powerful tool for self-reflection, and content analysis reveals semantic strategies that authors use to construct, negotiate, and reframe single motherhood. The authors aim to challenge societal expectations and redefine what constitutes a family. There are still conflicting messages that perpetuate negative stereotypes and stigmas about single mothers, propelling identity negotiation. The seven principal semantic strategies applied in the texts include reframing, renaming, normalization, direct or indirect confrontations, distinctions, self-labelling, and vernacular. By using semantic strategies, authors aim to empower single mothers, challenge negative stereotypes, and create a sense of community. While there are limitations to the self-help genre, it remains a powerful tool for self-reflection, self-empowerment, and the construction of identity.

Permafrost is warming at a global scale.

Permafrost warming has the potential to amplify global climate change, because when frozen sediments thaw it unlocks soil organic carbon. Yet to date, no globally consistent assessment of permafrost temperature change has been compiled. Here we use a global data set of permafrost temperature time series from the Global Terrestrial Network for Permafrost to evaluate temperature change across permafrost regions for the period since the International Polar Year (2007-2009). During the reference decade between 2007 and 2016, ground temperature near the depth of zero annual amplitude in the continuous permafrost zone increased by 0.39 ± 0.15 °C. Over the same period, discontinuous permafrost warmed by 0.20 ± 0.10 °C. Permafrost in mountains warmed by 0.19 ± 0.05 °C and in Antarctica by 0.37 ± 0.10 °C. Globally, permafrost temperature increased by 0.29 ± 0.12 °C. The observed trend follows the Arctic amplification of air temperature increase in the Northern Hemisphere. In the discontinuous zone, however, ground warming occurred due to increased snow thickness while air temperature remained statistically unchanged.