Sökresultat

Filtyp

Din sökning på "*" gav 535696 sökträffar

Ultrafast dynamics of fluorene initiated by highly intense laser fields

We present an investigation of the ultrafast dynamics of the polycyclic aromatic hydrocarbon fluorene initiated by an intense femtosecond near-infrared laser pulse (810 nm) and probed by a weak visible pulse (405 nm). Using a multichannel detection scheme (mass spectra, electron and ion velocity-map imaging), we provide a full disentanglement of the complex dynamics of the vibronically excited par

Language at Stake in International Research Collaboration—Methodological Reflections on Team-Based and Time-Intensive Ethnography

Based on experiences from multiple international research projects, spanning several decades and utilizing various forms of collaborative ethnographic approaches, this article aims to reflect on challenges and potentials regarding language and communication when researching across jurisdictions. Thematically, the research projects that we draw on in this paper, are concerned with aging and healthc

Landscape connectivity loss after the de-escalation of armed conflict in the Colombian Amazon (2011–2021)

Rapid deforestation has been well-documented in Colombia after the 2016 peace agreement with FARC. While many analysis using remote sensing identify land cover change, structural connectivity variables are less studied for understanding landscape transformation. In this work, we used data from the Landsat archive from 2011 to 2021, the Continuous Change Detection and Classification algorithm (CCDC

Grain boundary embrittlement due to phosphorus in tungsten : An atomistic approach

Tungsten (W) and its alloys exhibit impressive properties for use in structural components of nuclear fusion reactors. However, impurity induced embrittlement of W grain boundaries (GBs) is a major concern for reactor applications, and necessitates the investigation of the impact of the impurities on the fracture behaviour of the GBs. This work comprises four papers (I-IV) that deal with atomistic

Natural Marine Precursors Boost Continental New Particle Formation and Production of Cloud Condensation Nuclei

Marine dimethyl sulfide (DMS) emissions are the dominant source of natural sulfur in the atmosphere. DMS oxidizes to produce low-volatility acids that potentially nucleate to form particles that may grow into climatically important cloud condensation nuclei (CCN). In this work, we utilize the chemistry transport model ADCHEM to demonstrate that DMS emissions are likely to contribute to the majorit

Implementing detailed nucleation predictions in the Earth system model EC-Earth3.3.4 : Sulfuric acid-ammonia nucleation

Representing detailed atmospheric aerosol processes in global Earth system models (ESMs) has proven to be challenging from both a computational and a parameterization perspective. The representation of secondary organic aerosol (SOA) formation and new particle formation (NPF) in large ESMs is generally constructed with low detail to save computational costs. The simplification could result in losi

On the wear mechanisms of uncoated and coated carbide tools in milling titanium alloys

Titanium alloys are known for being difficult to machine. Within the groups of Ti alloys, the machinability is reduced when going from the α-alloys, to α + β, and finally to near-β or β-alloys. Uncoated cemented carbide is traditionally used for machining these alloys and finding a suitable coating to improve the performance is a challenge due to the high strength of Ti alloys and the high chemica

Exploring the interplay between antiretroviral therapy and the gut-oral microbiome axis in people living with HIV

The gut and oral microbiome is altered in people living with HIV (PLWH). While antiretroviral treatment (ART) is pivotal in restoring immune function in PLWH, several studies have identified an association between specific antiretrovirals, particularly integrase inhibitors (INSTI), and weight gain. In our study, we explored the differences in the oral and gut microbiota of PLWH under different ART

Migration in Times of Economic Growth and Recession

The industrial cities of the twentieth century were intimately dependent on and characterized by migration. This chapter focuses on describing and analyzing migration flows and migrant characteristics in relation to the general economic development of the industrial city of Landskrona. During the first decades of the century, migration tended to be circular between the city and the countryside. Mi

Media Tactics in the Long Twentieth Century

Integrating media studies with history, Media Tactics in the Long Twentieth Century explores the dynamic relationship between tactics and strategies in recent history. Drawing on examples from a range of different countries and world regions, and looking at the infrastructures, entanglements, and institutions involved, the volume makes a strong case for media tactics as a new field of scholarly in

Window Tactics : Entangled Visual Propaganda in Neutral Sweden, 1939–1945

During the Second World War, neutral Sweden became a battleground for propaganda between warring nations, prominently displayed through window displays on Stockholm's streets. This chapter studies the overlooked realm of visual propaganda, particularly focusing on the strategic use of window displays by Germany, the US, the UK and the Soviet Union. By analysing archival material and newspaper sour

The Legal Position of Local Government in Sweden

SUMMARY: 1. Introduction. – 2. Local Self-government in the Swedish Constitution. – 3. The Legal Role and Activities of Local Government. – 4. Legal Supervision ofLocal Government. – 5. Swedish Local Government and the EU.

Introduction : Towards a History of Media Tactics

The introduction to this edited collection situates the volume in relation to previous research on strategies and tactics in the humanities and the social sciences. Taking a media historical point of departure, a key ambition with this volume is to foreground the dialectic relationship between strategies and tactics in what we call the long twentieth century. Drawing on examples from a range of di

Afterword : Towards a Tactical Turn?

In this afterword, Marie Cronqvist, Fredrik Mohammadi Norén, and Emil Stjernholm tie together the chapters in Media Tactics in the Long Twentieth Century and summarise some of the book's key themes. Three key knowledge contributions are highlighted. First, the volume foregrounds tactics as a study object in itself, not just the effects or outcomes of strategic thinking. Second, the book counters t

Cardioneuroablation for the treatment of reflex syncope and functional bradyarrhythmias. A Scientific Statement of the European Heart Rhythm Association (EHRA) of the ESC, the Heart Rhythm Society (HRS), the Asia Pacific Heart Rhythm Society (APHRS) and the Latin American Heart Rhythm Society (LAHRS)

Cardioneuroablation has emerged as a potential alternative to cardiac pacing in selected cases with vasovagal reflex syncope, extrinsic vagally induced sinus bradycardia-arrest or atrioventricular block. The technique was first introduced decades ago, and its use has risen over the past decade. However, as with any intervention, proper patient selection and technique are a prerequisite for a safe

An Ethnographic Study Concerning the Implementation of Education on Ageing for Older Adults with Mild Intellectual Disability : The Perspective of the Educators

Despite the fact that longevity in people with intellectual disability has increased at least as much as in the general population, there is a dearth of interventions related to ageing for these older people. Therefore, this study investigated educators' implementation strategies in a new tailor-designed educational intervention with the goal of supporting the process of ageing for people with mil

Associations of the EAT-Lancet reference diet with metabolic dysfunction-associated steatotic liver disease and its severity : a multi-cohort study

BACKGROUND AIMS: The EAT-Lancet Commission devised a globally sustainable dietary pattern to jointly promote human health and sustainability. However, the extent to which this diet supports metabolic dysfunction-associated steatotic liver disease (MASLD) has not yet been assessed. This study aimed to investigate the association between the EAT-Lancet diet and risk of MASLD and its severity.APPROAC