Search results

Filter

Filetype

Your search for "*" yielded 534488 hits

Linearly polarized RABBIT beyond the dipole approximation

We theoretically investigate nondipole effects in the reconstruction of attosecond beating by interference of two-photon transitions (RABBIT) of helium using linearly polarized extreme ultraviolet and infrared fields. By scanning the time delay between the two fields, we observe modulations in sidebands (SBs) both for angular-integrated photoelectron yield and forward-backward asymmetry in photoel

The history of rescue in Poland and gender perspective: new approaches and questions

This essay does not claim to be a gender and quantitative analysis of rescue. Its modest aim is to discuss complexities and difficulties of studying the subject of rescue of Jews in wartime Poland from a gender perspective. The initial analysis put forward here is intended to investigate to what extent gender mattered in the treatment of the non-Jewish Polish rescuers by members of their local com

Ozone strengthens the ex vivo but weakens the in vivo pathway of the microbial carbon pump in poplar plantations

Elevated ozone (eO3) and atmospheric nitrogen (N) deposition are important climate change components that can affect plant growth and plant-soil-microbe interactions. However, the understanding of how eO3 and its interaction with N deposition affect soil microbially mediated carbon (C) cycling and the fate of soil C stocks is limited. This study aimed to test how eO3 and N deposition affected soil

Regulation of Antibiotic Resistance Genes on Agricultural Land Is Dependent on Both Choice of Organic Amendment and Prevalence of Predatory Bacteria

Antibiotic resistance genes (ARGs) are widespread in the environment, and soils, specifically, are hotspots for microorganisms with inherent antibiotic resistance. Manure and sludge used as fertilizers in agricultural production have been shown to contain vast amounts of ARGs, and due to continued applications, ARGs accumulate in agricultural soils. Some soils, however, harbor a resilience capacit

Vertebral compression fractures at abdominal CT : Underdiagnosis, undertreatment, and evaluation of an AI algorithm

Vertebral compression fractures (VCFs) are common and indicate a high future risk of additional osteoporotic fractures. However, many VCFs are unreported by radiologists, and even if reported, many patients do not receive treatment. The purpose of the study was to evaluate a new artificial intelligence (AI) algorithm for the detection of VCFs and to assess the prevalence of reported and unreported

The figure of Eros in a rare and unpublished French book hosted by the National Library of Sweden (1785-1814) : Histoire d'une puce. Between satirical fable and erotic and libertine tale

A French book relating to flea literature has recently been discovered at the National Library of Sweden in Stockholm. This article claims to be the first presentation of the work Histoire d’une puce by Louis Marie Céleste d’Aumont, Duke of Piennes (1762-1831), with the first literary analysis of its erotic content. The second half of the story is remarkable for the presence of Swedish words in th

Farmers’ motivations to cultivate biomass for energy and implications

Bioenergy derived from agricultural biomass can contribute to meeting the rising demand for renewable energy. To estimate the agricultural sector's potential to contribute to bioenergy, it is crucial to understand what motivates farmers to increase agricultural feedstock production sustainably. Through eight semi-structured interviews and online surveys with 174 farmers in southern Sweden, we expl

The application of haplotypes instead of species-level ranks modifies the interpretation of ecological preferences in lichen symbiont interactions in Parmelia

The analysis of the interaction between main bionts (mycobiont and photobiont) in the lichen symbiosis delivers substantial information about their preferences in the selection of symbiotic partners, and their ecological preferences. The selectivity in the Parmelia genus has been defined as strong so far. However, data on this lichen genus, which includes several widely distributed species, are bi

α-Synuclein oligomers form by secondary nucleation

Oligomeric species arising during the aggregation of α-synuclein are implicated as a major source of toxicity in Parkinson’s disease, and thus a major potential drug target. However, both their mechanism of formation and role in aggregation are largely unresolved. Here we show that, at physiological pH and in the absence of lipid membranes, α-synuclein aggregates form by secondary nucleation,

Mollow-like Triplets in Ultrafast Resonant Absorption

We show that resonant absorption of smooth laser fields can yield Mollow-like triplet patterns. General conditions for such triplets are derived and illustrated with a super-Gaussian pulse sequence. Gaussian pulses cannot exhibit triplets, super-Gaussian pulses can form triplets depending on the pulse area, and flattop pulses can produce absorption triplets after one Rabi cycle. Our results are co

Reform of the global financial architecture in response to global challenges : How to restore debt sustainability and achieve SDGs?

Achieving Sustainable Development Goals and climate targets in the face of rising debt levels requires financial resources which the current Global Financial Architecture (GFA) is failing to meet. In this context, calls for reforming the GFA have taken both front and centre stage. These calls are not just for raising more finance, but for making the GFA more equitable, just and responsive to crise

What motivates consumers to adopt controversial green mobility innovations? The case of shared e-bikes and e-scooters

Green innovations sometimes have a debatable environmental impact, which could be related to how their adopters use them. This paper examines five factors encompassing a consumer trait of being innovative and various motivations that could help further understand the adoption of controversial green innovations. Mainly, this paper examines the use decision and users' behavioral intentions in two gr

Shared space : Motorists’ perspective

Background: Shared spaces are intended to constitute an attractive urban space for everyone by blending protected and unprotected road users. However, our previous study showed that pedestrians prefer the traditional division between protected and unprotected road users, at the same time as elderly pedestrians focused less on traffic when the division was recreated by large flowerpots. Objective:

SLUSH peptides of the PSMβ family enable Staphylococcus lugdunensis to use erythrocytes as a sole source of nutrient iron

During infection, the host employs nutritional immunity to restrict access to iron. Staphylococcus lugdunensis has been recognized for its ability to utilize host-derived heme to overcome iron restriction. However, the mechanism behind this process involves the release of hemoglobin from erythrocytes, and the hemolytic factors of S. lugdunensis remain poorly understood. S. lugdunensis encodes four

Global increase in the optimal temperature for the productivity of terrestrial ecosystems

Vegetation growth may adapt to climate warming by adjusting the relationship between photosynthetic capacity and temperature. However, changes in the optimal temperature for ecosystem productivity during recent decades of warming remain uncertain. Here we provide empirical evidence that global optimal temperature increased at a rate of 0.017 ± 0.002 °C y−1 from 1982 to 2016, using multiple dataset

Cubosomes and hexosomes stabilized by sorbitan monooleate as biocompatible nanoplatforms against skin metastatic human melanoma

Nanoparticles have become versatile assets in the medical field, providing notable benefits across diverse medical arenas including controlled drug delivery, imaging, and immunological assays. Among these, non-lamellar lipid nanoparticles, notably cubosomes and hexosomes, showcase remarkable biocompatibility and stability, rendering them as optimal choices for theranostic applications. Particularl

Projected future changes in the cryosphere and hydrology of a mountainous catchment in the upper Heihe River, China

Climate warming exacerbates the degradation of the mountain cryosphere, including glacier retreat, permafrost degradation, and snow cover reduction. These changes dramatically alter the local and downstream hydrological regime, posing significant threats to basin-scale water resource management and sustainable development. However, this issue is still not adequately addressed, particularly in moun