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High migratory potential of fall armyworm in West Africa despite stable temperatures and widely available year-round habitats

The fall armyworm (FAW), an important migratory pest native to the Americas, was first detected in a nonnative region (West Africa) in 2016. In the following years, it quickly spread to multiple regions worldwide. FAW exhibits long-distance seasonal migration in both the Americas and Asia, primarily to take advantage of suitable seasonal habitats as they appear along the migratory pathways. Tropic

A murine pressure ulcer model for evaluating persistence and treatment of Staphylococcus aureus infection

Chronic wounds, particularly pressure ulcers, pose significant healthcare challenges, especially in the elderly population. This study presents an experimental murine model of chronically infected pressure ulcers using a single cycle of magnet-induced ischemic injury combined with infection by bioluminescent Staphylococcus aureus. The model addresses previous limitations in studying pressure ulcer

Constraints and Costs : Essays in Corporate Finance

This thesis investigates how firms respond to internal and external financial pressures through four self-contained empirical studies in corporate finance. The first study explores how asset tangibility influences investment behaviour, finding that firms with more physical assets exhibit stronger sensitivity of investment to cash flow, indicating a deeper role for tangibility beyond traditional fi

Electromechanical coupling in polaronic ceria

Oxygen-defective metal oxides like cerium oxides exhibit giant electrostriction and field-induced piezoelectricity due to a dynamic electrosteric interplay between oxygen defects, V O ⋅ ⋅ , and the fluorite lattice. While such mechanisms are generally attributed to oxygen vacancies, recent results also highlight that trapped cationic defects, Ce Ce ′ , i.e. small polarons, can contribute to the el

Valuing drought impact mitigation on ecosystem services in a Mediterranean country

Drought is a complex natural hazard increasing in frequency, duration, and severity worldwide. Although droughts cause both market and non-market impacts, the latter suffers from a dearth of economic studies quantifying their magnitude. In this paper, we investigated how droughts affect selected ecosystem services expected to result in welfare losses in Spain. This study is aimed at quantifying an

Influence of land cover on noise simulation output – A case study in Malmö, Sweden

Determining the land cover (LC) data requirements used as input to noise simulations is essential for planning sustainable urban densifications. This study examines how different LC datasets influence simulated environmental noise levels of road traffic using Nord2000 in an urban area of 1 km2 in southern Sweden. Four LC datasets were used. The first dataset was based on satellite data (spatial re

A Novel Decentralized Leader–follower Control Scheme for Centroid and Formation Tracking

This paper deals with the centroid and formation control problem of multi–agent robotic systems. The proposed solution is based on a leader–follower scheme, where only a subset of agents, i.e., the leaders, knows the desired trajectories for the centroid and the formation of the system, while the other agents, i.e., the followers, are required to estimate them through a dynamic consensus scheme. T

Economic evaluations of strategies targeting pre-diagnosis dementia populations : Protocol for a systematic review

Introduction: Dementia remains incurable, and treatment trials are typically conducted after the symptoms manifest, potentially too late in the disease process to alter its course. Early identification and intervention during the pre-diagnosis phase offer the potential to introduce more cost-effective strategies and enhance quality of life. This review aims to scrutinise emerging evidence and pres

Naturanpassade skyddsvallar mot stormfloder : Planering, anläggning, och förvaltning

Denna rapport är framtagen genom det Vinnova-finansierade projektet ”Naturbaserade skyddsvallar mot översvämning – planering, anläggning och förvaltning”. Projektet har varit ett samarbete mellan Vellinge kommun, Lunds universitet, Ecogain AB och Statens geotekniska institut (SGI). Föreliggande rapport är en sammanställning av de kunskaper och erfarenheter som har erhållits under detta projekt.

Evaluation of the adsorptive behaviour of kraft black liquor on nanofiltration model membrane surfaces via quartz crystal microbalance with dissipation monitoring (QCM-D)

Membrane filtration of kraft black liquor (KBL), a side-stream of the pulp and paper industry, is challenged by membrane fouling caused by its multicomponent complexity. The specific contributions of the components found in KBL to the fouling and the characteristics of the fouling layer that they create has not been investigated. Herein, the adsorptive and desorptive behaviours of KBL ultrafiltrat

Hydration enthalpies of amorphous sucrose, trehalose and maltodextrins and their relationship with heat capacities

The mechanisms of glass transitions and the behavior of small solute molecules in a glassy matrix are some of the most important topics of modern thermodynamics. Water plays an important role in the physical and chemical stability of lyophilized biologics formulations, in which glassy carbohydrates act as cryoprotectants and stabilizers. In this study, sorption calorimetry was used for simultaneou

An atomic force microscopy approach for assessment of particle density applied to single spray-dried carbohydrate particles

To evaluate an atomic force microscopy (AFM) approach for effective density analysis of single spray dried carbohydrate particles in order to investigate the internal structure of the particles. In addition, the AFM method was compared to an established technique, that is gas pycnometry. Resonant frequency AFM analysis was employed for determination of the mass of individual particles of spray-dri

In-situ lecithination of dairy powders in spray-drying for confectionery applications

Powders are essential ingredients of chocolate. In particular for milk chocolate milk and whey powders are important, together with sucrose, lactose and cocoa solids. During processing to maintain a good flow of the molten chocolate mass, particles with hydrophilic surfaces, such as dairy powders and sugars, are coated with a surface-active compound. Only lecithin and polyglycerol polyricinoleate

In situ coating-An approach for particle modification and encapsulation of proteins during spray-drying

In this paper, we present a method for in situ coating of individual protein particles in a respirable size. The aim of the coating was to influence the particle/powder properties, and to reduce or prevent surface-induced conformational changes of the protein, during spray-drying, which was the method used for simultaneously preparing and coating particles. The investigated formulations included b

The stability of insulin in solid formulations containing melezitose and starch. Effects of processing and excipients

Solid insulin formulations obtained by different methods of preparation were compared with respect to chemical stability and morphology. Spray- and freeze-drying, solution enhanced dispersion by supercritical fluids (SEDS) and precipitation into starch microspheres were the methods used for preparation of solid powders. The excipients applied were melezitose, starch, and sodium taurocholate. The s

Particle size and density in spray drying - Effects of carbohydrate properties

The purpose of this study was to examine some fundamental aspects of the particle formation during spray drying, related to particle size and density. Particles were prepared in a laboratory spray dryer from carbohydrates with different solubility and crystallization propensity, such as lactose, mannitol, and sucrose/dextran 4:1. The feed concentrations ranged from 1% w/w to saturated and the size