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Pupil dilation and constriction in the skate Leucoraja erinacea in a simulated natural light field
The skate Leucoraja erinacea has an elaborately shaped pupil, whose characteristics and functions have received little attention. The goal of our study was to investigate the pupil response in relation to natural ambient light intensities. First, we took a recently developed sensory-ecological approach, which gave us a tool for creating a controlled light environment for behavioural work: During a
Time-dependent exchange-correlation potential in lieu of self-energy
It is shown that the equation of motion of the one-particle Green function of an interacting many-electron system is governed by a multiplicative time-dependent exchange-correlation potential, which is the Coulomb potential of a time-dependent exchange-correlation hole. This exchange-correlation hole fulfills a sum rule, a generalization of the well-known sum rule of the static exchange-correlatio
Optimizing the quasi-equilibrium state of hot carriers in all-inorganic lead halide perovskite nanocrystals through Mn doping : fundamental dynamics and device perspectives
Hot carrier (HC) cooling accounts for the significant energy loss in lead halide perovskite (LHP) solar cells. Here, we study HC relaxation dynamics in Mn-doped LHP CsPbI3 nanocrystals (NCs), combining transient absorption spectroscopy and density functional theory (DFT) calculations. We demonstrate that Mn2+ doping (1) enlarges the longitudinal optical (LO)-acoustic phonon bandgap, (2) enhances t
A survey of adaptive control applicatins
The paper gives examples of industrial adaptive controllers and industrial applications of adaptive control. Adaptive control algorithms are found in single-loop controllers as well as in distributed control systems. Several commercial systems are available today. The given applications are mainly from the process control area. Adaptive control has many good aspects, but it also requires a good un
Factors affecting cup wear and migration in total hip arthroplasty
Höftprotesoperationer har blivit en mycket vanlig operation med generellt goda resultat. Allt fler och allt yngre patienter opereras vilket ställer högre krav på att höftprotesen fungerar bättre och håller längre så att en omoperation kan undvikas. En av de vanligaste orsakerna till att höftproteser behöver omopereras är effekter av cupslitage, det vill säga slitage av plasten som utgör slitytan i
Nonlinear mechanical behaviour and analysis of wood and fibre materials
The mechanical behaviour of wood was studied from a micro up to a macro level. Wood is a cellular material possessing a high degree of anisotropy. Like other cellular solids, it often exhibits a highly nonlinear stress–strain behaviour. In the present study the mechanical properties of the cellular structure of wood are characterized and modelled, the irregular cell shape, the anisotropic layered The mechanical behaviour of wood was studied from a micro up to a macro level. Wood is a cellular material possessing a high degree of anisotropy. Like other cellular solids, it often exhibits a highly nonlinear stress–strain behaviour. In the present study the mechanical properties of the cellular structure of wood are characterized and modelled, the irregular cell shape, the anisotropic layered
Interlegality, Municipalities and Social Change: A Sociolegal Study of the Controversy around Bullfighting in Bogotá, Colombia.
This thesis ponders the participation of municipal authorities amidst processes of sociolegal change. Such interest originated from acknowledging the limited autonomy that municipalities have in the nested scalar jurisdictional order of most contemporary states, the relevance of municipalities as spaces of local democracy, the social movements’ advocacy for social change at local levels, and the i
Epitaxial growth of β -Ga 2 O 3 by hot-wall MOCVD
The hot-wall metalorganic chemical vapor deposition (MOCVD) concept, previously shown to enable superior material quality and highperformance devices based on wide bandgap semiconductors, such as Ga(Al)N and SiC, has been applied to the epitaxial growth ofβ-Ga2O3. Epitaxial β-Ga2O3 layers at high growth rates (above 1 μm/h), at low reagent flows, and at reduced growth temperatures(740 ○C) are demo
Coherent acoustic phonon oscillations and transient critical point parameters of Ge from femtosecond pump‐probe ellipsometry
The complex pseudodielectric function of Ge and Si from femtosecond pump-probe spectroscopic ellipsometry with 267, 400, and 800 nm pump-pulse wavelengths is analyzed by fitting analytical lineshapes to the second derivatives of the pseudodielectric function with respect to energy. This yields the critical point parameters (threshold energy, lifetime broadening, amplitude, and excitonic phase angl
Cardiovascular Profile of South African Adults with Low-Level Viremia during Antiretroviral Therapy
Chronic inflammation is an HIV infection feature, contributing to elevated risk of cardiovascular disease among people with HIV, which can be induced by viral replication. A proportion of antiretroviral therapy (ART) recipients fail to achieve viral suppression, despite not meeting criteria for treatment failure, so-called low-level viremia (LLV). We investigated the relationship between LLV and a
A close look at the EU–Turkey deal: The language of border externalisation
The article discusses the language of border externalisation processes by examining the knowledge that stands as the basis of the EU–Turkey deal and reports on its implementation, placing them in the context of the transformation of the EU border regime. It is the result of a study addressing the language and key concepts that organise border externalisation and its geographic and biopolitical epi
Molecular Investigations of high-risk Mantle Cell Lymphoma : Genetic factors and the impact of the microenvironment
Mantle cell lymphoma (MCL) is an aggressive disease, with variable clinical course and heterogenous molecular characteristics. In this thesis, which is based upon six original papers, we aimed to understand MCL deregulations, both at intrinsic and extrinsic levels, to identify companion biomarkers that would allow patient stratification. With the aim to bridge the gap between research and clinical
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In response to the so-called migration crisis, the European Commission has promoted the creation of a European Emergency Trust Fund for Africa (EUTF) to address the root causes of migration through cooperation with third countries. Through such a tool, development is mainly used to ensure the control of migration routes, exacerbating pre-existing conflictual dynamics and contributing to serious hu
Immunity and lifespan: answering long-standing questions with comparative genomics
Long life requires individuals to defend themselves against pathogens over prolonged periods of time whilst minimising damage to themselves. In vertebrates, pathogen defence is provided by two integrated systems, innate and adaptive immunity. Innate immunity is relatively nonspecific, resulting in collateral damage to hosts, and does not involve canonical immunological memory. In contrast, adaptiv
Cancer and Therapy: A look into stemness and the tumour microenvironment
Therapy is the often-used treatment for cancer patients, even those that undergo resection surgery. While milestones have been surpassed throughout the decades for a number of cancer types, there are those that comprise of characteristics limiting effectiveness of treatments. For these, such as some breast and pancreatic cancers, other pursuits must be explored to identify avenues for beneficial t
A Vector Field Approach to Estimating Environmental Exposure Using Human Activity Data
Environmental exposure of people plays an important role in assessing the quality of human life. The most existing methods that estimate the environmental exposure either focus on the individual level or do not consider human mobility. This paper adopts a vector field generated from the observed locations of human activities to model the environmental exposure at the population level. An improved
Stimulus-dependent orientation strategies in monarch butterflies
Insects are well known for their ability to keep track of their heading direction based on a combination of skylight cues and visual landmarks. This allows them to navigate back to their nest, disperse throughout unfamiliar environments, as well as migrate over large distances between their breeding and non-breeding habitats. The monarch butterfly (Danaus plexippus), for instance, is known for its
Heatwave-Like Events During Development Are Sufficient to Impair Bumblebee Worker Responses to Sensory Stimuli
Heatwaves are increasingly common globally and are known to have detrimental impacts on animal morphology and behaviour. These impacts can be severe, especially if heatwaves occur during development, even on animals that can regulate the temperature of their developing young. The onset and duration of heatwaves are stochastic and therefore may affect all or only part of development. In the heterot
Experimental Verification of the Work Fluctuation-Dissipation Relation for Information-to-Work Conversion
We study experimentally work fluctuations in a Szilard engine that extracts work from information encoded as the occupancy of an electron level in a semiconductor quantum dot. We show that as the average work extracted per bit of information increases toward the Landauer limit Formula Presented, the work fluctuations decrease in accordance with the work fluctuation-dissipation relation. We compare