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Laser wakefield accelerators produce ultrashort, highly relativistic electron and x-ray pulses in plasma over millimeter distances. Crucial for investigations and applications of these pulses is a reproducible and controlled output beam pointing. Even with a perfectly stable laser, pulse-front tilt in the driving laser pulse has been shown to cause both the laser pulse and the electron beam to dev
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 photoelectric effect explained by Einstein is often regarded as a one-electron phenomenon, whereas the interaction of the escaping electron with other electrons, referred to as electron correlation, plays an important role in multielectron systems. In this Letter, we study the attosecond photoionization of the outer s subshell of argon in its substantial minimum cross-section region formed by
This book describes the Department of Physical Geography at Lund University from 1880 to 2000. It focuses on the staff and the development of Geography from its beginnings as a branch of History in 1880 through a period of traditional Geography up to 1948, when the subject was divided into two branches: physical Geography and Human and Economic Geography. Finally, the subject developed into a mode
The detection of gravitational waves (GWs) from a binary neutron star (BNS) merger by Advanced LIGO and Advanced Virgo (GW170817), along with the discovery of the electromagnetic counterparts of this GW event, ushered in a new era of multimessenger astronomy, providing the first direct evidence that BNS mergers are progenitors of short gamma-ray bursts (GRBs). Such events may also produce very-hig
The need for affordable housing requires more compact living. With the increasing frequency and impact of climate change incidents, a new way of thinking is needed to live in a more resilient and climate responsive way. The idea of a Z free home began by considering these two needs. As a tiny mobile house equipped with passive and eco-cycle systems, it achieves 9 zero targets. This paper evaluates
Entomological lidar can provide rapid, non-intrusive assessment of insect abundance, diversity and composition, and has the potential to shed light on species specific preferences for habitats or environmental conditions. However, few studies have to date demonstrated comparisons of insect diversity and abundance across sites using photonic methods. Here, we present a first comparative entomologic
LIDAR techniques have been extensively used for studies of aerosol particles. Fluorescence LIDAR was employed for studying natural bio aerosols, such as pollen, but also possible warfare agents. Insects, being "large aerosol" particles clearly give rise to LIDAR returns. Recently, honey bees were studied by polarization reflectance LIDAR and their superior olfactory abilities were used in attempts
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
Lidar is a powerful technique normally associated with atmospheric monitoring. However, lidar techniques, also of the laser-induced fluorescence and laser-induced breakdown spectroscopy varieties, provide many new possibilities in unconventional fields including cultural heritage and ecological applications.
We have adapted an optical transmission microscope to multispectral imaging in order to diagnose Plasmodium falciparum without using fluorescent labels for parasites as is the case for the thick and thin blood smears. We show how a set of monochromatic Light Emitting Diodes (LEDs) has provided an efficient contrast and spatial resolution to identify the parasites inside the erythrocytes. The obtai
Hand eczema and facial skin problems are common occupational-related skin diseases. However, the data regarding care workers in community care settings are limited. To assess the prevalence and factors associated with hand eczema and facial skin problems among community care personnel, an online questionnaire link was sent to 10,194 personnel in Sweden, with questions regarding hygiene routines, s
Asthma is a common health problem. Both common and rare genetic risk factors may contribute to asthma, but few large-scale whole-exome sequencing studies elucidating the contribution of rare variations to asthma have been published. Two published UK Biobank portals: the Genebass portal (N = 269,171) and the Astra Zeneca portal (N = 484,111) (https://azphewas.com/and https://app.genebass.org/) were
For flying animals, including many birds, bats, and insects, the air is a crucial arena for a range of behaviors. Technological advances, such as year-round tracking of flight altitudes and expanded use of radar, increasingly show how flying animals use the aerial habitat. This enables us to answer questions about the environmental patterns and ecological processes that shape aerial niches, includ
This paper examines municipality-owned sustainable and local food production initiatives in Dalarna, Sweden, through the lens of the ‘public plate’ as both a strategy for securing high-quality, sustainable food and a tool for regional development. Using a qualitative case study, we explore how these initiatives promote local food while advancing broader sustainability goals. We situate local actio
