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Isolated attosecond pulses are often generated via sub-optical-cycle polarization gating. This technique, based on the precise control of the time-dependent polarization of the infrared driver pulse, enables strong temporal confinement of the extreme ultraviolet (XUV) emission from high-order harmonic generation (HHG) in gases. In this work, we study the influence of pulse propagation between the

The use of large language models (LLMs) is being explored for a multitude of tasks in software engineering (SE), ranging from code generation to bug report assignment. Although LLMs provide impressive results, they require more time and energy than some other machine learning models. For some tasks, simpler models may be more sustainable than LLMs. In this paper, we construct natural language clas

This thesis examined the impact of the COVID-19 lockdown on Athenian air quality from March 23rd to May 5th, 2020. The Attica Ground Measuring Network was used to measure the concentrations of NO, NO₂, SO₂, CO, PM₁₀, PM₂.₅, and O₃ for the 2020 lockdown and for the same time period from 2005 to 2019 as reference. Nitric oxide (NO) and nitrogen dioxide (NO₂) concentrations decreased by up to 75% an

Climate neutrality of cities has emerged as a critical goal for sustainable urban development. This is typified by the mission in the European Union (EU) to achieve 100 climate neutral and smart cities by 2030. The idea of carbon or climate neutrality holds diverse interpretations. This paper investigates the dominant socio-technical imaginary for urban climate neutrality within the context of the

In this podcast mini-series, we talk with members of the Breaking Up Silos project, which is a research project involving researchers from Sweden and The Netherlands and practitioners in the cities of Stockholm and Amsterdam. The project aims to increase the understanding of how­ the EU's mission for climate-neutral cities can break up silos and provide innovative governance approaches and tools t

We predict an unexplored type of ultrastrong coupling between atoms and intense ultraviolet light that leads to giant population oscillations on the attosecond timescale. These counter-rotating oscillations stem from the interference of energy-conserving and nonconserving photon absorption and emission processes via Rydberg states. They can be of similar amplitude as the elementary femtosecond Rab

Accurate global estimates of accumulation-mode particle number concentrations (N100) are essential for understanding aerosol–cloud interactions and their climate effects and for improving Earth system models. However, traditional methods relying on sparse in situ measurements lack comprehensive coverage, and indirect satellite retrievals have limited sensitivity in the relevant size range. To over

Quantitative investigation of insect activity in their natural habitat is a challenging task for entomologist. It is difficult to address questions such as flight direction, predation strength and overall activities using the current techniques such as traps and sweep nets. A multi-spectral kHz remote detection system using sunlight as an illumination source is presented. We explore possibilities

Boreal forests are globally important carbon (C) sinks, but strategies for maximising their climate benefit remain under debate. Major uncertainties in this discussion arise from contrasting sink-source estimates, which largely emanate from inherent limitations of standard measurement techniques to distinct spatio-temporal scales. Here, we use a spatially-nested measurement framework that integrat

Current advancements in molecular techniques for identifying multiple species from bulked soil samples have expanded our capacity for large-scale soil biodiversity assessments. However, these methods often lack validation and contextualization. Recent cross-European studies based on environmental DNA (eDNA) have reported unexpectedly high biodiversity in intensively managed agricultural soils comp

This ESMO CPG provides key recommendations and algorithms for managing DLBCL, FL, HL, MCL, MZL, PCNSL and PTCL. •It covers epidemiology, diagnosis, staging, risk assessment, treatment of primary and refractory disease and follow-up. •Treatment algorithms for each lymphoma type are provided. •The author group encompasses a multidisciplinary group of experts from different institutions and countries

We recently published an article that demonstrates how eDNA can reveal shifts in the annual timing of wind-carried dispersal agents (spores) of mosses and liverworts.

A secondary objective of Bryomolecules is to apply methods developed in the project for what is known as ex situ preservation, that is, maintaining collections of endangered species in laboratory cultures. It is undoubtedly always best to preserve the species in their natural environment, but sometimes this is not enough. Lab cultures could potentially be used to replace populations that have gone

The scene floor of the forest theatre consists of a green mat of small plants. For most people it is quite anonymous and un-noticed, but several hundreds of species could thrive in this environment. In my research, I try to understand aspects of this hidden world of mosses and liverworts, including their relations to other plants and animals.

The events of September 8, 1978, in Iran, commonly known as ‘Black Friday’, have long been portrayed as a mass killing of peaceful protesters by the Shah’s regime, with widely cited death tolls ranging from several hundred to several thousand. However, this article presents a comprehensive reassessment of the incident at Jaleh Square in Tehran, arguing that the dominant narrative is rooted more in

Objectives To investigate sex education in Swedish schools regarding content, satisfaction, and suggested improvements, as described by teenagers and young adults. Methods Waiting-room survey conducted among 225 female patients (aged 13-25) at youth and student health clinics in one large-, and one medium-sized Swedish city. Results Most participants (97%, n=218) had received sex education in scho

Objectives: To explore young men's perceptions of (i) the risk for themselves and their partners in connection with unprotected intercourse, and (ii) the main barriers to practising safe sex. Methods:Qualitative latent content analysis of interviews involving 22 Swedish males aged 16-20, who requested a Chlamydia test. Results: The main categories identified were: (1) Low perceived threat regardin

Objective. To explore Swedish women's experiences of clinical abortion care in relation to their need for existential support. Methods. Individual in-depth interviews with 24 women with previous experience of unwanted pregnancy and abortion. Participants were recruited between 2006 and 2009. Interviews were analysed by latent content analysis. Findings. Although the women had similar experiences o

Background. Sweden has the highest abortion numbers among the Nordic countries. Since 1995, the abortion rate among teenagers has increased by nearly 50%. We therefore undertook a study where the overall aim was to gain a deeper understanding on which factors female teenagers believe may explain the increasing numbers of teenage abortions. Teenagers' perceptions of teenage pregnancy, abortion, sex