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Placidean teachings in early 19th century Britain : John Worsdale and Thomas Oxley

The paper examines the reception of and revisions made to the teachings of the Italian astrologer-monk Placido de Titi (1603 – 1668) in Protestant England following the decline of astrology during the 18th century, particularly as found in the writings of John Worsdale (1766 – c. 1826), whose role in the emergence of modern astrology is to a certain extent reappraised, and of his contemporary crit

Convergence Speed of Coupling Iterations for the Unsteady Transmission Problem

We present an estimate for the convergence rate of the Dirichlet-Neumann iteration for the discretized unsteady transmission problem. Specifically, we consider the coupling of two heat equations on two identical squared domains. The Laplacian is discretized by second order central finite differences and the implicit Euler method is used for the time discretization. For the semidiscrete case, Hensh

Density-based particle fractionation

We present a label-free method capable of rapidly sorting particles based on their densities. Our device relies on deterministic lateral displacement (DLD) and achieves density fractionation by the use of T-shaped posts. By combining it with a lateral density gradient we achieve a density separation that is independent of size within a range given by the device geometry. Herein we present a proof-

A lipid-based passivation scheme for nanofluidics

Stretching DNA in nanochannels allows for direct, visual studies of genomic DNA at the single molecule level. In order to facilitate the study of the interaction of linear DNA with proteins in nanochannels, we have implemented a highly effective passivation scheme based on lipid bilayers. We show long-term passivation of nanochannel surfaces to several relevant reagents and demonstrate that the pe

Separation of deformable hydrogel microparticles in deterministic lateral displacement devices

To better understand how deformable and non-spherical particles behave in sorting devices based on deterministic lateral displacement we generate models of biological particles with tunable size, shape and mechanical properties using stop-flow lithography and we explore how these parameters play a role in our separation devices. Hollow and solid cylinders are compared with respect to their deforma

A high-throughput deterministic lateral displacement device for rapid and sensitive field-diagnosis of sleeping sickness

We present a simple and rapid microfluidic device capable of extracting and concentrating the parasite causing the fatal disease sleeping sickness (SS) from blood. The device is based on deterministic lateral displacement (DLD) and constructed with a single inlet with flow induced by an ordinary syringe. The simplicity is crucial as the device is intended for use in the resource depraved areas whe

Multiple depths in a deterministic lateral displacement device for field-diagnosis of sleeping-sickness

We present a simple and inexpensive device capable of extracting and concentrating the parasite causing sleeping sickness from blood. The device is aimed at being used in rural resource depraved areas where the disease is endemic; therefore simplicity is of paramount importance. The device is based on deterministic lateral displacement with a single inlet and flow induced by a syringe. Through an

Re-industrialisation and low carbon economy – Can they go together? Results from transdisciplinary scenarios for energy intensive industries

This paper draws upon an extensive transdisciplinary scenario development in the context of the stakeholder oriented preparation of the climate protection plan of the German federal state North Rhine-Westphalia, which is home to the most important heavy industry cluster in Europe. In that context we developed differentiated bottom up climate change mitigation strategies and scenarios for the major

The separation of nano-sized particles in micro-scaled post arrays

The precise separation of nanoscale particles has proven challenging due to diffusion and the need to use nanoscale devices. We show the separation of particles in the 100 nm size range in Deterministic Lateral Displacement (DLD) devices with feature sizes in the 10 µm size range. We achieve this using Dielectrophoretic (DEP) forces, generated between the metal coated posts that act as active elec

STRATEGIES TO LEVERAGE BIOFUEL CROP CO-BENEFITS

Economies in Transition (EiTs) exemplified by countries such as Poland, Ukraine, Belarus, Moldova etc. face many socio-economic and environmental challenges – energy security, high unemployment, poor transportation and municipal service infrastructure, and rural depopulation are common themes. Agricultural biofuel production offers a number of socio-economic co-benefits that can contribute to the

A FrameNet-based semantic role labeler for Swedish

We present a FrameNet-based semantic role labeling system for Swedish text. As training data for the system, we used an annotated corpus that we produced by transferring FrameNet annotation from the English side to the Swedish side in a parallel corpus. In addition, we describe two frame element bracketing algorithms that are suitable when no robust constituent parsers are available. We evaluated

Elimination of resistive losses in large-area LEDs by new diffusion-driven devices

High-power operation of conventional GaN-based light-emitting diodes (LEDs) is severely limited by current crowding, which increases the bias voltage of the LED, concentrates light emission close to the p-type contact edge, and aggravates the efficiency droop. Fabricating LEDs on thick n-GaN substrates alleviates current crowding but requires the use of expensive bulk GaN substrates and fairly lar

Integration of acousto- and dielectrophoresis allows tumor cell separation and enrichment followed by arraying of target cells toward analysis of circulating tumor cells at the single-cell level

We present an advanced approach for single-cell analysis of circulating tumor cells (CTCs) by integrating an acoustofluidic chip for sample preparation, including simultaneous acoustophoretic separation and enrichment of the separated cells, onto an electroactive microwell array (EMA) for single-cell arraying. The integrated device shows highly efficient cell recovery of target cells (82.5%) and d

Surface based fluidics for particle sorting

We have created devices that are extremely simple to fabricate, function without pumps, are reusable and capable of dealing with very large differences in particle sizes without clogging. Our new approach to microfluidic particle sorting is precise enough for applications in blood fractionation, cancer cell sorting, parasite detection and sample decomplexing in general. We achieve this using Deter

OPTIMISATION AND PERFORMANCE QUANTIFICATION ACOUSTIC TRAPPING USING SYNTHETIC NANOPARTICLES

Acoustic trapping is becoming increasingly popular as a tool to isolate and enrich biological nanoparticles [1] (particularly extracellular vesicles [2]), yet an inherent problem with acoustic trapping of nanoparticles is calibration of the trapping efficiency. This abstract presents in-house synthesized nanoparticles with different sound scattering properties, either rigid high density gold nanop

DNA movement in sub-20 nm nanoslits

The movement of XbaI digested O-DNA in 20 nanometer and O-DNA in 12 nanometer high slits was investigated. We found that DNA moved intermittently and following preferential pathways, indicating an important influence of surface roughness. From these intermittent movements two different mobilities were calculated, the total averaged mobilities and averaged mobilities between the intermittent sticki

Transcriptomic profiling of T-cell populations in non-muscle invasive and muscle invasive bladder cancer.

Background: Bladder cancer is categorized as non-muscle invasive (NMIBC) or muscle invasive (MIBC). NIMBC makes up around 70% of the cases and although it is less aggressive, the recurrence rate is 50-70%, thus requiring extensive monitoring. Additionally, there is a risk of progression into MIBC with a 5-year survival of only 50% even when treated with radical cystectomy. Immune checkpoint inhibi

Using remote sensing to model carbon source/sink dynamics in the sahel

Recent research has identified the grasslands of the Sahel as a potential carbon sink, but regional carbon stock accounting in such biomes is undermined by the poorly recognized role they play in the carbon cycle as well as lack of data. In this paper, we demonstrate the feasibility of coupling the satellite data-driven light use efficiency model (Lund University Light Use Efficiency Model - LULUE