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Current capabilities of the imaging endstation at the NanoMAX beamline

The new imaging endstation of the NanoMAX beamline is being designed to complement the already existing diffraction endstation: measurements with smaller beams at lower photons energies, with higher stability, in vacuum and with sample cooling at the measurement position, optimized for X-ray fluorescence mapping and ptychographic imaging in two and three spatial dimensions. This comes at the cost

Isonicotinate-Zn(ii)/Cd(ii) bridged dicobaloximes : synthesis, characterization and electrocatalytic proton reduction studies

Herein, we present the synthesis of two new dicobaloxime complexes, [{ClCo(dmgH)2(4-PyCOO)}2Zn(DMF)2] (1) and [{ClCo(dmgH)2(4-PyCOO)}2Cd(H2O)3(DMF)].4H2O (2) bridged by isonicotinate-Zn(ii) and Cd(ii) moieties. These complexes were synthesized upon reaction of a monomeric chlorocobaloxime [ClCo(dmgH)2(4-PyCOOH)] with Zn(NO3)2·6H2O and Cd(OAc)2·2H2O in a methanol/DMF solvent mixture. Both complexes

Unraveling Rabi dynamics with a seeded FEL at XUV wavelength

Rabi oscillations, a prominent feature of coherent light-matter interaction arise when a two-level system interacts periodically with an external electromagnetic field [1]. Despite being a cornerstone in quantum physics, they are usually studied in the long-wavelength region, ranging from mid-infrared to visible. Here, we demonstrate that intense femtosecond extreme-ultraviolet (XUV) pulses from F

Local structural mechanism for enhanced energy storage properties in heterovalent doped NaNbO3 ceramics

In recent years, there is a growing interest for new lead-free oxides with reversible antiferroelectric (AFE)-ferroelectric (FE) phase transition for high-power energy-storage applications. NaNbO3-based ceramics are particularly attractive due to their easy synthesis and cost-effectiveness. In order to stabilize reversible AFE-FE phase transition, NaNbO3 is doped with a combination of heterovalent

Characterizing Ultrashort Laser Pulses With a Time-Dependent Polarization State Using the D-Scan Technique

The main idea behind the presented work is to extend the dispersion scan (d-scan) technique to measuring the time-dependent polarization state of ultrashort laser pulses. For demonstration, a rapidly varying polarization state, i.e. a polarization gate, was created from ultrashort pulses with a duration of 6 fs using a combination of wave plates. The time-dependent variation of the polarization wa

EXPLOITING AXIAL PRIMARY RADIATION FORCE FOR ACOUSTOFLUIDIC PARTICLE TRAPPING

In the present study, we demonstrate an acoustofluidic trapping technique based on the standing bulk acoustic waves (S-BAW) generated inside a uniquely designed chamber - the 'shaped trap' that enables the particle to experience the axial primary radiation force (A-PRF) along the flow direction as the main trapping force.

Effects of Brain Pathologies on Spatiotemporal Gait Parameters in Patients with Mild Cognitive Impairment

Background: Impaired gait can precede dementia. The associations between gait parameters and brain pathologies are therefore of interest. Objective: To explore how different brain pathologies (i.e., vascular and Alzheimer's) are associated with specific gait parameters from various gait components in persons with mild cognitive impairment (MCI), who have an increased risk of developing dementia. M

Methodological strategies to understand smartphone practices for social connectedness in later life

Digital practices in later life are not yet well understood. Therefore, this paper discusses the framework for a research design project that aims at tracing differences and similarities in how older adults use their smartphones in circumstances in and outside their homes in Spain, the Netherlands, Sweden, and Canada. The research questions of this international research project focus on the exten

Using academic work places to involve older people in the design of digital applications : presentation of a methodological framework to advance co-design in later life

Methods to involve users in design have long been used to create relevant content and increase the accuracy of product development. Demographic trends have raised the issue of the needs and demands of older people, especially with regard to digitization. In contrast to the high number of publications discussing the importance of involving people in the design of their daily life, very few publicat

Of robots and humans : creating user representations in practice

In this study, we explore the constitution of user representations of robots in design practice. Using the results of ethnographic research in two robot laboratories, we show how user representations emerge in and are entangled with design activities. Our study speaks to the growing popularity of and investment in robotics, robots and other forms of artificial intelligence. Scholars in Science and

Technology development with older people : the role of “unfettered design”

This article introduces a new method to design with older people: unfettered design. We discuss three points of concern with existing methods of involving older users: unspecific design outcomes, prejudiced views on older users, and underlying power asymmetries, which can diminish the innovative capacities of the older adults involved. To overcome these issues, we argue for the benefits of adoptin

The importance of user involvement : a systematic review of involving older users in technology design

Background and Objectives: There is a lack of understanding of how older adults' involvement and participation matters in actual design practice. This systematic literature review investigates existing empirical studies involving older users during the design of technologies and explores the nature and consequences of involving older people. Research Design and Methods: Our literature review is in

Design multiple : how different configurations of participation matter in design practice

This article critically interrogates how participation is practiced during the design process. We present the findings of three different configurations of participatory design workshops, each involving a different stakeholder group (age researchers, care experts and older adults). Building on insights from Science and Technology Studies (STS), we reveal how, in design practice, different configur

Co-design as learning : the differences of learning when involving older people in digitalization in four countries

Involving older people through co-design has become increasingly attractive as an approach to develop technologies for them. However, less attention has been paid to the internal dynamics and localized socio-material arrangements that enact this method in practice. In this paper, we show how the outcomes that can be achieved with user involvement often pertain to learning, but their content can di

Doing user involvement : shifting interstices and coalescing tensions in care technology

This paper explores user involvement in company practice as a method that is both contingent and transformative. Drawing on ethnographic research in a small- to medium-sized care technology company, we trace how user involvement is enacted in diverse forms to resolve, deal with, and circumvent the frictions and tensions surrounding it. While encompassing similar types of configuration work, these

Creep of un-doped and Cr-doped WC-Co at high temperature and high load

Un-doped and Cr-doped WC-10 vol% Co cemented carbides with a WC grain size of 1.4 μm have been investigated before and after hot compressive creep tests under an applied load of 900 MPa at 1000 °C and 300 MPa at 1100 °C. The Cr-doped material showed a much higher creep resistance at 1000 °C and a somewhat higher creep resistance at 1100 °C than the un-doped material. Quantitative microscopy showed

A cross-stakeholder approach to improving out-of-hospital cardiac arrest survival

Background: Out-of-hospital cardiac arrest (OHCA) affects over 300,000 individuals per year in the United States with poor survival rates overall. A remarkable 5-fold difference in survival-to-hospital discharge rates exist across United States communities. Methods: We conducted a study using qualitative research methods comparing the system of care across sites in Michigan communities with varyin

Biologics in severe asthma : A pragmatic approach for choosing the right treatment for the right patient

The development of monoclonal antibody therapies targeting specific components of the pathways relevant to asthma pathophysiology has revolutionized treatment of severe asthma both in adults and children and helped to further unravel the heterogeneity of this disease. However, the availability of multiple agents, often with overlapping eligibility criteria, creates a need for pragmatic guidance fo