This paper examines the potential of using ammonia (NH 3) as a primary fuel in heavy-duty engines for decarbonization, with some challenges yet to be addressed. It presents a numerical study of a Reactivity Controlled Compression Ignition engine, where pilot diesel is used to ignite the premixed ammonia/air mixture. The numerical model and combustion mechanism are validated against engine experime

The discovery of a novel long-lived metastable skyrmion phase in the multiferroic insulator Cu2OSeO3 visualized with Lorentz transmission electron microscopy for magnetic fields below the equilibrium skyrmion pocket is reported. This phase can be accessed by exciting the sample non-adiabatically with near-infrared femtosecond laser pulses and cannot be reached by any conventional field-cooling pro

Clouds are essential elements within Earth's atmosphere, posing a challenge for cloud-resolving models in understanding the creation of new cloud ice particles from existing ice and liquid phases. Such ice initiation determines cloud microphysical and radiative properties, influencing cloud phase, precipitation and cloud extent/properties. To address this challenge effectively, it proves beneficia

Doppler evaluation of the aortic isthmus, located between the left subclavian artery and the ductus arteriosus, can provide important information on fetal hemodynamic adaptation/deterioration related to intrauterine hypoxia. The aortic isthmus acts as a shunt deviating part of the blood flow from ductus arteriosus to the cranial circulation to maintain a normal oxygen delivery to the fetal brain.

Background: Impaired social cognition (SC) occurs frequently in schizophrenia (SCZ), yet compared to autism spectrum disorder (ASD), the research on SC in SCZ is sparse and methodologically heterogeneous. To accurately assess between-group SC differences it is further necessary to establish the relationship between nonsocial cognition (NSC) and SC, particularly as this may not be identical across

The formation of amyloid fibrils is a general class of protein self-assembly behaviour, which is associated with both functional biology and the development of a number of disorders, such as Alzheimer and Parkinson diseases. In this Review, we discuss how general physical concepts from the study of phase transitions can be used to illuminate the fundamental mechanisms of amyloid self-assembly. We

We derive the expression of the loop gain in a circuit containing one or more feedback loops, where the transfer functions building the expression are found by means of a few AC analyses on the circuit. No approximations or assumptions on the nature of the loop or of the impedances therein contained are necessary. While hand calculations are certainly possible in the case of simpler circuits, the

BackgroundColorectal cancer (CRC) ranks as the third most frequently occurring cancer and the second leading cause of cancer-related deaths worldwide. In response to the high demand for an effective prevention strategy, chemoprevention, using medications to block the pathogenetic pathways of disease, might be an attractive strategy to offer a more effective option at a low cost. Therefore, we aime

Introduction: Risk evaluation for preeclampsia in early pregnancy allows identification of women at high risk. Prediction models for preeclampsia often include circulating concentrations of placental growth factor (PlGF); however, the models are usually limited to a specific PlGF method of analysis. The aim of this study was to compare three different PlGF methods of analysis in a Swedish cohort t

Denna avhandling behandlar spridning av lätta mesoner i fallet där antalet externa mesoner överstiger fyra (d.v.s. tre eller fler partiklar i initial- eller finaltillståndet), beräknat genom kiral störningsräkning. Detta är både av teoretiskt intresse inom studien av spridningsamplituder, och relevant för system av tre eller fler pioner som simuleras genom gitter-kvantkromodynamik.Introduktionen hThis thesis concerns scattering of light mesons in the case where the number of external particles exceeds four (that is, three or more particles in the initial or final state), calculated using chiral perturbation theory.This is both of theoretical interest in the study of scattering amplitudes, and relevant for systems of three or more pions simulated using lattice quantum chromodynamics.The int

The European Synchrotron Radiation Facility (ESRF), a leading facility in synchrotron science, plays a crucial role in supporting both the local and the international scientific community by providing advanced instrumentation for their research. However, our understanding of the actual reach of the facility and its spatial dynamics remains limited. Thus, a methodology is proposed where author affi

The exhibition and public programme “Systems, Organisms, Symbiosis” reopens again at EIGHT (Polytechniou 8) from 23 September to 22 October 2021. It focuses on active interactions of systems, beings, organisms and narratives as these take place in urban, social and environmental fields. Thinking through notions of mutation, immunity and continuity it explores emergent instituent forms, models of c

Distributed tracing plays a vital role in microservice infrastructure, and learning-based trace analysis has been utilized to detect anomalies within such systems. However, existing approaches for learning-based trace-based anomaly detection face certain limitations. Some assume that trace patterns can be learned solely from normal executions, while others depend on anomaly injection to generate l

BACKGROUND: There is still a profound lack of efficient therapeutic strategies against pancreatic and other periampullary adenocarcinoma. Surgery is seldom possible, leaving palliative chemotherapy the only option for most patients. Chemotherapy treatment is however often accompanied by serious side-effects, and the identification of biomarkers for early prediction of disease and treatment-associa

BackgroundGender stereotypes about women and men have a complementary structure, where women and men are seen as high/low in feminine characteristics and low/high in masculine characteristics. These stereotypes are related to representation within social roles, where beliefs about social role occupation influences which characteristics are associated with women or men. It is not known how people w

Although the nature and definition of populism are a source of considerable disagreement, there seems to be a minimal consensus by now that populism poses a number of threats to liberal democracy, and that public authorities should therefore act in defence of the latter. In searching for appropriate responses, however, most scholars draw from strategies for combatting anti-democratic or extremist