Hoe present is bemoeizorg?

Doel: Aan de hand van de analyse van een casus uit de eigen praktijk zicht krijgen op wat er, vanuit het perspectief van de presentiebenadering bezien, gebeurt in dit specifieke bemoeizorgtraject. Daarnaast een antwoord krijgen op de vraag wat uit het handelen van de werker te leren is over bemoeizorg als goede zorg. Typering onderzoek: Kwalitatief, intensief onderzoek in de vorm van een gevalsstudie aan de hand van een casus uit de eigen (bemoeizorg)praktijk van de onderzoeker. Uitkomsten en bevindingen: Het interventionistische aspect van de contactleggingsfase in het bemoeizorgtraject wordt vanuit de presentiebenadering gezien al snel na de eerste kennismaking gerepareerd. Dit gebeurt doordat de bemoeizorger een manier vindt om doelgericht en vraaggericht werken te combineren. Zij gaat vanuit betrokkenheid op een aandachtige manier een relatie met de cliënt aan. Een relatie waarin de heer, doordat de werker zichzelf laat zien, zichzelf ook durft te laten zien. De relatie verdiept zich toenemend. De werker zet waar nodig haar persoonlijke en professionele competenties in in haar zorg voor de heer. De cliënt wordt door de bemoeizorger weer betrokken in een relatie en gaandeweg van daaruit weer in contact gebracht met de wereld om hem heen. Hij ervaart baat bij de ingezette zorg: hij laat duidelijk merken dat hij er door opbloeit. De relatie groeit uiteindelijk uit tot een volledig ‘presente’ relatie, waarin de bemoeizorger ook de verantwoordelijkheid neemt die aan de relatie verbonden is. Vanuit zorgethisch perspectief gezien is het traject na een interventionistische start goede zorg te noemen. Beperkingen: Er wordt slechts één casus (N=1) bestudeerd en geanalyseerd. Hierdoor zijn de resultaten niet generaliseerbaar naar een populatie. De casus is opgetekend door de onderzoeker in haar eigen woorden. Hierdoor blijft de eigen inbreng van de cliënt achterwege. Het was, vanwege het feit dat de cliënt overleden is, ook niet mogelijk de bevindingen bij hem te toetsen om daarmee de betrouwbaarheid te verhogen. Waarde: Omdat een casus uit de praktijk van bemoeizorg intensief bestudeerd en geanalyseerd wordt, geeft het onderzoek een reële inkijk in de manier van werken in de bemoeizorg. Hierdoor is een gefundeerde uitspraak te doen over hoe deze werkwijze zich verhoudt tot de presentiebenadering. Trefwoorden: Bemoeizorg, presentiebenadering, relatie, aandacht, contact, autonomie, zorgethiek, goede zorg, wederkerigheid, kwalitatief onderzoek, (N=1)-gevalsstudie

NIKEL: Electronics and data acquisition for kilopixels kinetic inductance camera

A prototype of digital frequency multiplexing electronics allowing the real time monitoring of microwave kinetic inductance detector (MKIDs) arrays for mm-wave astronomy has been developed. Thanks to the frequency multiplexing, it can monitor simultaneously 400 pixels over a 500 MHz bandwidth and requires only two coaxial cables for instrumenting such a large array. The chosen solution and the performances achieved are presented in this paper.Comment: 21 pages, 14 figure

Paper-Based Electrochemical Sensors Using Paper as a Scaffold to Create Porous Carbon Nanotube Electrodes.

Paper-based sensors and assays have evolved rapidly due to the conversion of paper-based microfluidics, functional paper coatings, and new electrical and optical readout techniques. Nanomaterials have gained substantial attraction as key components in paper-based sensors, as they can be coated or printed relatively easily on paper to locally control the device functionality. Here, we report a new combination of methods to fabricate carbon nanotube-based (CNT) electrodes for paper-based electrochemical sensors using a combination of laser cutting, drop-casting, and origami. We applied this process to a range of filter papers with different porosities and used their differences in three-dimensional cellulose networks to study the influence of the cellulose scaffold on the final CNT network and the resulting electrochemical detection of glucose. We found that an optimal porosity exists, which balances the benefits of surface enhancement and electrical connectivity within the cellulose scaffold of the paper-based device and demonstrates a cost-effective process for the fabrication of device arrays

Anisotropic Carbon Nanotube Structures with High Aspect Ratio Nanopores for Li-Ion Battery Anodes.

Technological advances in membrane technology, catalysis, and electrochemical energy storage require the fabrication of controlled pore structures at ever smaller length scales. It is therefore important to develop processes allowing for the fabrication of materials with controlled submicron porous structures. We propose a combination of colloidal lithography and chemical vapor deposition of carbon nanotubes to create continuous straight pores with diameters down to 100 nm in structures with thicknesses of more than 300 μm. These structures offer unique features, including continuous and parallel pores with aspect ratios in excess of 3000, a low pore tortuosity, good electrical conductivity, and electrochemical stability. We demonstrate that these structures can be used in Li-ion batteries by coating the carbon nanotubes with Si as an active anode material

3D Microstructured Carbon Nanotube Electrodes for Trapping and Recording Electrogenic Cells

Electrogenic cells such as cardiomyocytes and neurons rely mainly on electrical signals for intercellular communication. Microelectrode arrays (MEAs) have been developed for long-term recording of cell signals and stimulation of electrogenic cells under low-cell-stress conditions, providing new insights in the behavior of electrogenic cells and the operation of the brain. To date, MEAs are relying on flat or needle-shaped electrode surfaces, mainly due to limitations in the lithographic processes. This paper relies on a previously reported elasto-capillary aggregation process to create 3D carbon nanotube (CNT) MEAs. This study shows that CNTs aggregate in well-shaped structures of similar size as cardiomyocytes are particularly interesting for MEA applications. This is because i) CNT microwells of the right diameter preferentially trap individual cardiomyocytes, which facilitates single cell recording without the need for clamping cells or signal deconvolution, and ii) once the cells are trapped inside of the CNT wells, this 3D CNT structure is used as an electrode surrounding the cell, which increases the cell-electrode contact area. As a result, this study finds that the recorded output voltages increase significantly (more than 200%). This fabrication process paves the way for future study of complex interactions between electrogenic cells and 3D recording electrodes.This work was supported by the Research Foundation—Flanders (FWO, Belgium) under Project No. 11S1214N. Michael De Volder was supported by the ERC Starting Grant (337739)—HIENA and the Marie Curie Grant CANA (618250). Davor Copic was supported by the Marie Curie Grant EmuCam (660351)

Hardware Sequencing of Inflatable Nonlinear Actuators for Autonomous Soft Robots

Soft robots are an interesting alternative for classic rigid robots in appli-cations requiring interaction with organisms or delicate objects. Elastic inflatable actuators are one of the preferred actuation mechanisms for soft robots since they are intrinsically safe and soft. However, these pneumatic actuators each require a dedicated pressure supply and valve to drive and control their actuation sequence. Because of the relatively large size of pres-sure supplies and valves compared to electrical leads and electronic control-lers, tethering pneumatic soft robots with multiple degrees of freedom is bulky and unpractical. Here, a new approach is described to embed hardware intelligence in soft robots where multiple actuators are attached to the same pressure supply, and their actuation sequence is programmed by the inter-action between nonlinear actuators and passive flow restrictions. How to model this hardware sequencing is discussed, and it is demonstrated on an 8-degree-of-freedom walking robot where each limb comprises two actua-tors with a sequence embedded in their hardware. The robot is able to carry pay loads of 800 g in addition to its own weight and is able to walk at travel speeds of 3 body lengths per minute, without the need for complex on-board valves or bulky tethers.ERC starting gran

Scalable electrochromic nanopixels using plasmonics.

Plasmonic metasurfaces are a promising route for flat panel display applications due to their full color gamut and high spatial resolution. However, this plasmonic coloration cannot be readily tuned and requires expensive lithographic techniques. Here, we present scalable electrically driven color-changing metasurfaces constructed using a bottom-up solution process that controls the crucial plasmonic gaps and fills them with an active medium. Electrochromic nanoparticles are coated onto a metallic mirror, providing the smallest-area active plasmonic pixels to date. These nanopixels show strong scattering colors and are electrically tunable across >100-nm wavelength ranges. Their bistable behavior (with persistence times exceeding hundreds of seconds) and ultralow energy consumption (9 fJ per pixel) offer vivid, uniform, nonfading color that can be tuned at high refresh rates (>50 Hz) and optical contrast (>50%). These dynamics scale from the single nanoparticle level to multicentimeter scale films in subwavelength thickness devices, which are a hundredfold thinner than current displays