Sökresultat

Filtyp

Din sökning på "*" gav 533806 sökträffar

Effective lifetime of Ni laser induced fluorescence excited at 336.9 nm during spark plug discharge

In this study, the laser induced fluorescence lifetime of Ni atoms in ambient air with presence of a plasma discharge was measured for the first time. Free Ni atoms were generated in air at a pressure of 1 bar by spark plug discharges driven by an inductive coil. The Ni atoms were excited at the 336.957 nm absorption line by a 336.96 nm, 90 ps laser pulse and the resulting temporally resolved deca

Solar drying of banana (“Jazi Kela”) in the rural area of Bhutan: Engineering and product quality aspects

Agriculture is the main employment in Bhutan, making it an agriculture-based economy. The project “Solar Food: Reducing post-harvest losses through improved solar drying” is to help indigenous people to preserve their food crops in a more efficient but still natural way by using solar energy for drying. A new idea arose to commercialize food items dried in the solar dryer instead, which would affe

Characterisation and Toxicity Assessment of Metal Ion-Enriched Nanoparticles

Cancer remains one of the main challenges in healthcare, with profound global impact both in terms of morbidity and mortality. Spago Nanomedical is a Swedish company that has developed innovative metal-ion enriched nanoparticle-based therapies for cancer treatment and diagnosis. These nanoparticles have shown great promise and are currently undergoing clinical trials, however, there persists a des

SCALING CONFLICTS THROUGH SYMBOLIC PLACE NARRATIVES: THE EMOTIVE GEOGRAPHY OF POWER DYNAMIC

This thesis investigates the role of sense of place narratives in the scaling of conflicts, using the Israel-Gaza conflict as a critical case study. Existing literature has extensively discussed scale framing and the significance of scale in conflict resolution but has not fully explored the mechanisms through which the scaling of conflicts occurs. The study aims to address this gap by proposing a

Multilevel barriers to guideline implementation - a nationwide multi- professional cross- sectional study within child and adolescent psychiatry

Background: Despite efforts to promote guideline use, guideline adoption is often suboptimal due to failure to identify and address relevant barriers. Barriers vary not only between guidelines but also between settings, intended users, and targeted patients. Multi-professional guidelines are often used in child and adolescent mental health services (CAMHS), making the implementation process more d

Promoting public sector innovation: who does what, when and how?

A strong and prevailing innovation imperative is sweeping across the public sector and despite a growing literature on public sector innovation (PSI), the actors driving these processes tend to end up in the background of analysis. Based in an analytical framework of narrative theory and organization studies, and the efforts to introduce Social Impact Bonds (SIB) in Sweden as empirical case, the aA strong and prevailing innovation imperative is sweeping across the public sector and despite a growing literature on public sector innovation (PSI), the actors driving these processes tend to end up in the background of analysis. Based in an analytical framework of narrative theory and organization studies, and the efforts to introduce Social Impact Bonds (SIB) in Sweden as empirical case, the a

A Journey of Care: A qualitative study on cancer caregiving in Vietnam

Cancer caregiving is currently including significant challenges, especially for cancer families as they have to face high treatment costs. This study analyzes the experience of cancer caregivers in Vietnam with the focus on financial hardship and different kinds of burden. Previous studies in Vietnam show that the rising cases of cancer in Vietnam have put severe pressure on family members, who la

Magnetic aqueous two-phase separation in preparative applications

Magnetic aqueous two-phase separation is a new technique to speed up the separation of aqueous two-phase systems (Anal. Biochem. 1987, 167, 331–339). It is based on the addition of magnetically susceptible material (e.g. 1-μ iron oxide particles) which induces rapid phase separation when a mixed system is placed in a magnetic field. The technique has been applied to a number of two-phase systems.

Lack of Women in Renewable Energies Industry in Sweden Interviewee perception on the lack of women representation in STEM careers and therefore the renewable energy industry in Sweden

This thesis aims to understand the exclusionary process that leads women to be underrepresented in the renewable energy industry in Sweden. Through interviews and a ground theory approach to the analysis of the data, this thesis aims to explore the perception and experiences of women during their higher education in heavy math STEM careers and later their career choices this thesis will provide an

Towards regenerative finance: does sustainability reporting lead to a regenerative future?

A transition away from our current degenerative and linear economic system is urgently needed, as we are living beyond the means of our planet and have already transgressed 6 of the 9 planetary boundaries. A new approach to sustainability must be embraced to regenerate nature and society and move humanity to a just and safe space. As finance plays a crucial role in the sustainability transition, r

Preparation and characterization of composite polymers exhibiting both selective molecular recognition and electrical conductivity

Electrically conducting composite particles were manufactured consisting of a morphine-imprinted methacrylic acid-ethyleneglycoldimethacrylate copolymer interpenetrated with a polypyrrole network. The imprinted polymer was first prepared and then used as a host polymer into which pyrrole monomer was adsorbed. After partial drying of the pyrrole-saturated host polymer, an oxidant was adsorbed, when

The ATLAS experiment at the CERN Large Hadron Collider: a description of the detector configuration for Run 3

The ATLAS detector is installed in its experimental cavern at Point 1 of the CERN Large Hadron Collider. During Run 2 of the LHC, a luminosity of ℒ = 2 × 1034 cm-2 s-1 was routinely achieved at the start of fills, twice the design luminosity. For Run 3, accelerator improvements, notably luminosity levelling, allow sustained running at an instantaneous luminosity of ℒ = 2 × 1034 cm-2 s-1, with an a

Photoproduction of K+K- Pairs in Ultraperipheral Collisions

K+K- pairs may be produced in photonuclear collisions, either from the decays of photoproduced φ(1020) mesons or directly as nonresonant K+K- pairs. Measurements of K+K- photoproduction probe the couplings between the φ(1020) and charged kaons with photons and nuclear targets. The kaon-proton scattering occurs at energies far above those available elsewhere. We present the first measurement of coh

Heterogeneity in vegetation recovery rates post-flash droughts across different ecosystems

Flash droughts, as sub-seasonal phenomena, are characterized by their rapid onset and significant impact on terrestrial ecosystems. However, understanding how vegetation responds to flash droughts and the mechanisms governing vegetation recovery remains elusive. Here, we analysed the response of vegetation productivity to flash droughts and identified the most relevant drivers controlling vegetati

Different Vegetation Covers Leading to the Uncertainty and Consistency of ET Estimation : A Case Study Assessment with Extended Triple Collocation

Accurate and reliable estimation of actual evapotranspiration (AET) is essential for various hydrological studies, including drought prediction, water resource management, and the analysis of atmospheric–terrestrial carbon exchanges. Gridded AET products offer potential for application in ungauged areas, but their uncertainties may be significant, making it difficult to identify the best products

Doing PAXY Things: Swedish 3rd-Grade Students’ Feelings and Attitudes Towards Participation in the PAX Good Behavior Game

The PAX Good Behavior Game (PAX-GBG) is a school-based intervention shown to enhance student self-regulation, encourage prosocial behavior, and curb challenging behaviors. However, little is understood about students’ perspectives on theintervention. In this study, we conducted a survey and semi-structured interviews with 3rd-grade students in Sweden to examine their feelings and attitudes towards

Motivationsfaktorer för användning av sociala media-tjänster: Samband med psykiskt mående, livskvalitet och problematisk användning

Motivationsfaktorer för användning av sociala media-tjänster är ett område som det i dagsläget finns begränsat med forskning om. I denna tvärsnittsstudie har syftet varit att utforska samband mellan motivationsfaktorer för användning av sociala media tjänster, problematiskt bruk av sociala media-tjänster, psykiskt mående och livskvalitet. Skillnader mellan de som identifierat sig som kvinnor respeMotivations for social media use is a topic where there is currently a limited amount of research. The purpose of this cross-sectional study was to study correlations between motivations for social media use, problematic use of social media services, mental well-being, and quality of life. Differences between those who identified themselves as women and men were also studied. Data collection was d

Unveiling the drivers of atmospheric methane variability in Iran : A 20-year exploration using spatiotemporal modeling and machine learning

Understanding the factors controlling spatial and temporal variability of atmospheric methane concentration (XCH4) is crucial for mitigating its impacts and implementing emission reduction strategies. This study comprehensively investigates XCH4 and its driving factors (environmental, meteorological, and anthropogenic activity) across Iran over 20 years, from 2003 to 2022. It combines multi-source

Fast Relative Pose Estimation using Relative Depth

In this paper, we revisit the problem of estimating the relative pose from a sparse set of point-correspondences. For each point-correspondence we also estimate the relative depth, i.e. the relative distance to the scene point in the two images. This yields an additional constraint, allowing us to use fewer matches in RANSAC to generate the pose candidates. In the paper we propose two novel minima