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Thermodynamic correction of particle concentrations measured by underwing probes on fast-flying aircraft
2016
Particle concentration measurements with underwing probes on aircraft are impacted by air compression upstream of the instrument body as a function of flight velocity. In particular, for fast-flying aircraft the necessity arises to account for compression of the air sample volume. Hence, a correction procedure is needed to invert measured particle number concentrations to ambient conditions that is commonly applicable to different instruments to gain comparable results. In the compression region where the detection of particles occurs (i.e. under factual measurement conditions), pressure and temperature of the air sample are increased compared to ambient (undisturbed) conditions in certain …
A Self-Contained and Automated Method for Flood Hazard Maps Prediction in Urban Areas
2020
Water depths and velocities predicted inside urban areas during severe storms are traditionally the final result of a chain of hydrologic and hydraulic models. The use of a single model embedding all the components of the rainfall&ndash
At the heart of the Board: CEO and Chair. Processes, practices and relationships
2019
This doctoral dissertation explores leadership in the dyadic relationship of the Chief Executive Officer (CEO) and the Chair of the Board, and in the process leading to CEO dismissal. The study contributes to the literature on relational leadership and the human side of corporate governance and Board work by increasing understanding of the relational practices and processes of the CEO and Chair. A theoretical model is developed of the construction of the CEO-Chair relationship. Additionally, the study makes a methodological contribution by examining researcher-practitioner collaboration during the writing of this study. A qualitative research approach was adopted in the study, with open-end…
Does Gender Matter? - A Case Study of the Lack of Female Sport Managers in the Football Associations of Finland and Norway
2019
Master's thesis Innovative governance and public management ME523 - University of Agder 2019 The aim of this research is to address why there are fewer female leaders in the football associations of Finland and Norway and what are the underlying factors influencing the phenomenon. The research problem is approached with a multiple case study method, the object of research being the factors influencing women’s careers in the football associations.The empirical material of this qualitative research consists of interviews of three female and two male leaders from the football association of Finland and two female and two male leaders from the football association of Norway. The interview data …
Solving a Bloody Mess: B-Vitamin Independent Metabolic Convergence among Gammaproteobacterial Obligate Endosymbionts from Blood-Feeding Arthropods an…
2015
Endosymbiosis is a common phenomenon in nature, especially between bacteria and insects, whose typically unbalanced diets are usually complemented by their obligate endosymbionts. While much interest and focus has been directed toward phloem-feeders like aphids and mealybugs, blood-feeders such as the Lone star tick (Amblyomma americanum), Glossina flies, and the human body louse (Pediculus humanus corporis) depend on obligate endosymbionts which complement their B-vitamin-deficient diets, and thus are required for growth and survival. Glossiphoniid leeches have also been found to harbor distinct endosymbionts housed in specialized organs. Here, we present the genome of the bacterial endosy…
Evoked responses to transcranial and electrical stimulation during isometric and lengthening contractions of the soleus muscle
2011
The aim of this study was to assess differences in motor control between isometric and lengthening contractions of the soleus muscle. Evoked responses to TMS (MEPs) and electrical stimulation of the peripheral nerve (H-reflexes) where recorded at rest and during isometric and lengthening contractions of the soleus muscle at 20%, 40%, 60% and 80% MVC. Torque and background EMG were averaged over a time window of 100ms prior to stimulation. MEPs were found to be significantly lower (P < 0.05) during lengthening contractions compared to isometric contractions at 40%, 60% and 80% MVC (10.95 ± 0.05 mV vs 9.93 ±0.06 mV ; 1.47 ± 0.07 mV vs 9.7 ± 0.08 mV; 11.48 ± 0.08 mV ± vs 10.14 ± 0.07 mV). The …
Symbiotic status alters fungal eco‐evolutionary offspring trajectories
2023
Despite host-fungal symbiotic interactions being ubiquitous in all ecosystems, understanding how symbiosis has shaped the ecology and evolution of fungal spores that are involved in dispersal and colonization of their hosts has been ignored in life-history studies. We assembled a spore morphology database covering over 26,000 species of free-living to symbiotic fungi of plants, insects and humans and found more than eight orders of variation in spore size. Evolutionary transitions in symbiotic status correlated with shifts in spore size, but the strength of this effect varied widely among phyla. Symbiotic status explained more variation than climatic variables in the current distribution of…
Terrestrial Inputs Drive Seasonality in Organic Matter and Nutrient Biogeochemistry in a High Arctic Fjord System (Isfjorden, Svalbard)
2020
Climate-change driven increases in temperature and precipitation are leading to increased discharge of freshwater and terrestrial material to Arctic coastal ecosystems. These inputs bring sediments, nutrients and organic matter (OM) across the land-ocean interface with a range of implications for coastal ecosystems and biogeochemical cycling. To investigate responses to terrestrial inputs, physicochemical conditions were characterized in a river- and glacier-influenced Arctic fjord system (Isfjorden, Svalbard) from May to August in 2018 and 2019. Our observations revealed a pervasive freshwater footprint in the inner fjord arms, the geochemical properties of which varied spatially and seaso…
Digikehitysjohtajan tehtävissä tarvittavat kompetenssit : laadullinen tutkimus
2017
Tämän tutkimuksen tarkoituksena on selvittää kirjallisuuskatsauksen ja empiirisen tutkimuksen avulla: mitä kompetensseja digikehitysjohtajan (eng. Chief Digital Officer, CDO) tehtävissä tarvitaan? Digitalisaatio on Mooren lain aikaansaama teknologian kehittymisen ilmiö, joka saa aikaan muutoksia, niin yksilö-, yritys- kuin yhteiskuntatasoilla. Yritysten näkökulmasta siihen liittyy keskeisesti digitaalinen transformaatio, jossa teknologian mahdollisuuksia pyritään hyödyntämään yrityksessä digitalisoinnin avulla. Digitaalinen transformaatio vaikuttaa yrityksiin monella tavalla, ja sen hyödyt ovat parhaiten nähtä-vissä asiakaskokemuksessa, prosesseissa ja liiketoimintamalleissa. Transformaatio…
An antique lead coffin discovered in Évreux (Eure): a multidisciplinary study
2013
The Roman cemetery of le Clos au Duc in Évreux (Eure) lasted from the 1st to the 4th c. AD. The most common funerary practice in the 1st c. AD was cremation. From the beginning of the 2nd c. AD this rapidly gave place to inhumation burials. By the end of the 3rd c. lead coffins could be found in burials, but it remained a minority practice reserved for an elite. The 2010 excavation in Évreux allowed the recovery of an example of these. It was incomplete, but the good preservation of its remains made a multidisciplinary study possible. Apart from the bones of a young woman, the lead coffin contained coins, textile, fur, calcite (CaCO3) and insects. These results make it possible to retrace t…