Search results

Filter

Filetype

Your search for "*" yielded 530063 hits

Visual adaptations in predatory and scavenging diurnal raptors

Ecological diversity among diurnal birds of prey, or raptors, is highlighted regarding their sensory abilities. While raptors are believed to forage primarily using sight, the sensory demands of scavengers and predators differ, as reflected in their visual systems. Here, I have reviewed the visual specialisations of predatory and scavenging diurnal raptors, focusing on (1) the anatomy of the eye a

Measurements and analysis of primary ship waves in the Stockholm Archipelago, Sweden

Primary ship waves generated by conventional marine vessels were investigated in the Furusund fairway located in the Stockholm archipelago, Sweden. Continuous water level measurements at two locations in the fairway were analyzed. In total, 466 such events were extracted during two months of measurements. The collected data were used to evaluate 13 existing predictive equations for drawdown height

Datafication as a Trend for Journalism : a Journalist’s Perspective

The datafication of journalism creates new demands on journalists. The set of skills and the daily work in the newsroom have changed the profession where traditional values might still be present but are challenged by how data is received, constructed and analyzed. This impacts how journalism is being produced; data contributes to the reporting and provides opportunities on how to conduct research

Automated orientation of water molecules in neutron crystallographic structures of proteins

The structure and function of proteins are strongly affected by the surrounding solvent water, for example through hydrogen bonds and the hydrophobic effect. These interactions depend not only on the position, but also on the orientation, of the water molecules around the protein. Therefore, it is often vital to know the detailed orientations of the surrounding ordered water molecules. Such inform

Impact of longer term phosphorus control on cardiovascular mortality in hemodialysis patients using an area under the curve approach : results from the DOPPS

BACKGROUND: Serial assessment of phosphorus is currently recommended by the Kidney Disease: Improving Global Outcomes (KDIGO) guidelines, but its additional value versus a single measurement is uncertain. METHODS: We studied data from 17 414 HD patients in the Dialysis Outcomes and Practice Patterns Study, a prospective cohort study, and calculated the area under the curve (AUC) by multiplying the

Optimal Design of a High-Voltage DC/DC Converter for the 11.5-MW/115-kV ESS Long-Pulse Modulator

The stacked multilevel (SML) klystron modulator topology has been suggested as an alternative to conventional pulse transformer-based topologies in an attempt to improve output pulse performance and reduce system size for long-pulse applications. In this topology, a power converter chain including a high-frequency transformer generates the output pulse in a pulse modulation/demodulation scheme, el

Inhibition of LTβR signalling activates WNT-induced regeneration in lung

Lymphotoxin β-receptor (LTβR) signalling promotes lymphoid neogenesis and the development of tertiary lymphoid structures1,2, which are associated with severe chronic inflammatory diseases that span several organ systems3-6. How LTβR signalling drives chronic tissue damage particularly in the lung, the mechanism(s) that regulate this process, and whether LTβR blockade might be of therapeutic value

Consumer acceptance and value in use-oriented product-service systems : Lessons from Swedish consumer goods companies

In order to make our production and consumption systems more sustainable, there is a need to further explore and support novel business models with higher sustainability potential. Use-oriented product-service systems (u-PSS) are considered a promising alternative to traditional ownership-based business models, as they may result in lower environmental impacts. The presence of u-PSS in consumer go

Making use of evaluations to support a transition towards a more sustainable energy system and society-an assessment of current and potential use among Swedish state agencies

Evaluations hold the potential to support decision-making so that current global challenges related to climate and energy can be addressed; however, as the challenges are becoming increasingly large and complex, new and transformative evaluation approaches are called for. Such transformative evaluation in turn builds on an extended and more deliberate use of evaluations. This study focuses on the

Long-term response to a bioactive biphasic biomaterial in the femoral neck of osteoporotic rats

Osteoporosis often leads to fragility fractures of the hip, resulting in impaired quality of life and increased mortality. Augmenting the proximal femur could be an attractive option for prevention of fracture or fixation device failure. We describe a tissue engineering based strategy to enhance long-term bone formation in the femoral neck of osteoporotic rats by locally delivering bioactive molec

Cortical and striatal circuits together encode transitions in natural behavior

In natural behavior, we fluidly change from one type of activity to another in a sequence of motor actions. Corticostriatal circuits are thought to have a particularly important role in the construction of action sequences, but neuronal coding of a sequential behavior consisting of different motor programs has not been investigated at the circuit level in corticostriatal networks, making the exact

Sars for the antiparasitic plant metabolite pulchrol. part 2 : B- And c-ring substituents

Neglected tropical diseases affect most of the underprivileged populations in tropical countries. Among these are chagas and leishmaniasis, present mainly in South and Central America, Africa and East Asia. Current treatments are long and have severe adverse effects, therefore there is a strong need to develop alternatives. In this study, we base our research on the plant metabolite pulchrol, a na

Calculating the primary Lund Jet Plane density

The Lund-jet plane has recently been proposed as a powerful jet substructure tool with a broad range of applications. In this paper, we provide an all-order single logarithmic calculation of the primary Lund-plane density in Quantum Chromodynamics, including contributions from the running of the coupling, collinear effects for the leading parton, and soft logarithms that account for large-angle an

Cataract surgery of eyes with previous vitrectomy : risks and benefits as reflected in the European Registry of Quality Outcomes for Cataract and Refractive Surgery

PURPOSE: To explore the frequency and outcomes of cataract surgery in eyes with previous vitrectomy. SETTING: Fifteen European countries. DESIGN: Retrospective cross-sectional register-based study. METHODS: The European Registry of Quality Outcomes of Cataract and Refractive Surgery (EUREQUO) contains data on baseline characteristics, surgery, and follow-up for cataract surgeries. Previous vitrect

Searches for new physics phenomena with jet final states in the ATLAS detector

Collimated sprays of paticle, known as jets,are abundantly produced in high-energy proton-proton (pp) collisions, and are predicted by many theories of physics beyond the Standard Model. This thesis reports first on the calibration of jets with focus on the data-driven in situ calibration. Two searches for new physics phenomena in events with jets in the final state are then presented. The analyse

Remarkably similar migration patterns between different red-backed shrike populations suggest that migration rather than breeding area phenology determines the annual cycle

The regular fluctuation of resources across the Globe guides movements of migratory animals. To ensure sufficient reproductive output and maintain viable population sizes, migratory animals should match arrival at breeding areas with local peaks in resource availability. It is generally assumed that breeding phenology dictates the timing of the annual cycle, but this is poorly studied. Here, we us

X-ray diffraction reveals the amount of strain and homogeneity of extremely bent single nanowires

Core-shell nanowires (NWs) with asymmetric shells allow for strain engineering of NW properties because of the bending resulting from the lattice mismatch between core and shell material. The bending of NWs can be readily observed by electron microscopy. Using X-ray diffraction analysis with a micro- and nano-focused beam, the bending radii found by the microscopic investigations are confirmed and

Populism, ontological insecurity and gendered nationalism: Masculinity, climate denial and Covid-19

This article proceeds from a critical analysis of gendered narratives of nationhood as manifested in far-right populist politics and discourses in response to major security challenges. We focus on how such narratives exemplify gendered nationalism and inform the discourses of populist political leaders and their followers, with a particular focus on the USA and the UK. We proceed from an engageme