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Three different semiconductor nanowires are combined into a single optoelectronic artificial neuron. Our device provides a path towards low power computations with significantly reduced circuit footprint, thus addressing critical limitations in neuromorphic photonics. The false-coloured scanning electron micrograph shown in Figure 1a depicts the fabricated nanowire neuron. Two pin-doped InP nanowi
Studies have shown positive health outcomes from shared reading (SR) for various patient groups. In this article, we explore whether this applies to doctors as well by studying the dynamics of SR sessions and a subsequent participant focus group. Four SR sessions, with one short story and one or two poems each, were held with medical interns working at Skåne University Hospital, Sweden. A reflexivStudies have shown positive health outcomes from shared reading (SR) for various patient groups. In this article, we explore whether this applies to doctors as well by studying the dynamics of SR sessions and a subsequent participant focus group. Four SR sessions, with one short story and one or two poems each, were held with medical interns working at Skåne University Hospital, Sweden. A reflexiv
Intense ultrashort-pulsed laser systems based on Ti:sapphire chirped pulse amplifiers (CPA) operating at 800 nm have been a workhorse of ultrafast science for several decades. More recently, driven by the progress in laser technology, sources with central wavelengths further in the infrared have emerged as powerful tools, in particular to generate soft X-ray (SXR) radiation via high-harmonic gener
Photonics-based approaches to neuromorphic hardware offer advantages in speed and connectivity but often suffer from large device footprints.[1] Here, we present an ultra-compact artificial neuron built from semiconductor nanowires. A scanning electron micrograph of the nanowire device is presented in Figure 1a. Inside the dashed box, we show the neuron built from three III-V nanowires - two InP p
Exposure to stressors and associated hormones during development can significantly affect offspring phenotype, including social and philopatric behaviour, but these effects can be mediated by the postnatal social environment (‘social buffering’). While the effects of social buffering are well established for complex social behaviours—such as parental provisioning, grooming or cooperative care—the
Hot-wall metalorganic vapor phase epitaxy enables a superior quality of group-III nitride epitaxial layers and high electron mobility transistor structures, but has not yet been explored for N-polar growth. In this work, we aim at achieving N-polar AlN nucleation layers (NLs) with optimized properties for subsequent growth of GaN device heterostructures. The effects of substrate orientation on the
These days, talk of quantum technologies and the coming ‘quantum revolution’ or ‘quantum leap’ is hard to miss. There is a broad agreement that quantum technologies have a high probability of becoming the next disruptive technological development, and the way they should be regulated and the timing of such intervention are issues that are attracting increasing attention. An analysis of how these q
The green transition relies on metals, requiring increased metal recovery from waste. However, exposure risks among metal recycling workers are poorly understood. We conducted a cross-sectional study to assess dust and metal exposure among 139 recycling workers from 13 Swedish metal recycling companies and 90 controls. We documented work practices through observations and questionnaires and assess
Thermal conductivity of AlxGa1-xN layers with 0 ≤ x ≤ 0.96 and variable thicknesses is systematically studied by combined thermoreflectance measurements and a modified Callaway model. We find a reduction in the thermal conductivity of AlxGa1-xN by more than one order of magnitude compared to that of GaN, which indicates a strong effect of phonon-alloy scattering. It is shown that the short-mean fr
We present and discuss the complete set of infrared-active phonon modes in monoclinic-symmetry crystal modification gallium oxide (gallia, β-Ga2O3). The phonon mode set is obtained from a comprehensive analysis of generalized spectroscopic ellipsometry data in the farinfrared and infrared spectral regions investigating various n-type electrically conductive single crystal samples with different fr
Trögers bas är en v formad molekyl och liknar en klädhängare I profil. Den tillverkades för första gången av Julius Tröger 1887. Han använde p-Toluidine som startmaterial i en kondensations reaktion. Problemet med det startmaterialet är att det kan ge upphov till sidoprodukter i form av regio isomerer. En metod så kallat syntetiskt protokoll har tagits fram för att tillverka en variant eller med eA Trögers base analogue the amine1,7-dimethyl-6H,12H-5,11-methanodibenzo[b,f][1,5]diazocine-2,8-diamine has been synthesized successfully and characterized using 1H NMR. This work describes 4 steps out of 6 in a synthetic scheme and includes a brief summary of the history, properties and applications of Trögers Base taken from the literature. Of particular note is the condensation step the protoco
Transient thermoreflectance (TTR) technique is employed to study the thermal conductivity of β-Ga2O3 and high Al-content AlxGa1-xN semiconductors, which are very promising materials for high-power device applications. The experimental data are analyzed with the Callaway's model taking into account all relevant phonon scattering processes. Our results show that out-of-plane thermal conductivity of
Strain-stress relationships for physical properties are of interest for heteroepitaxial material systems, where strain and stress are inherent due to thermal expansion and lattice mismatch. We report linear perturbation theory strain and stress relationships for optical phonon modes in monoclinic crystals for strain and stress situations which maintain the monoclinic symmetry of the crystal. By us
PMSMs have acquired wide applications in industries because of high power density, high efficiency, and reliable operation. PMSMs possess numerous benefits, including low maintenance, smooth operation, quick dynamic response, and improved thermal management due to permanent magnets used instead of rotor windings. These characteristics render PMSMs suitable for use in electric vehicles (EVs), indus
The assessment of residual lymphovascular invasion (LVI) in breast cancer patients undergoing neoadjuvant therapy may be a critical factor influencing prognosis and treatment decisions. However, there is a notable discrepancy between the RCB, UICC/AJCC, and ICCR guidelines regarding how LVI should be evaluated and reported in this context. ICCR recommends including LVI in the invasive tumor size f
Being able to dynamically shape light at the nanoscale is one of the ultimate goals in nano-optics1. Resonant light–matter interaction can be achieved using conventional plasmonics based on metal nanostructures, but their tunability is highly limited due to a fixed permittivity2. Materials with switchable states and methods for dynamic control of light–matter interaction at the nanoscale are there
Biological membranes and human interfaces are maintained under non-equilibrium conditions, where they are constantly exposed to different stimuli. The aim of this work is to advance our knowledge of human interfaces and evaluate how they respond to stimuli they naturally encounter, such as fluctuations in external humidity conditions, temperature, or UVB irradiation. In the first part of this thes
Background: The lectin-like oxidised low-density lipoprotein receptor-1 (LOX-1) mediates atherosclerotic plaque inflammation and vulnerability. On activation, LOX-1 sheds its extracellular domain into the circulation as soluble LOX-1 (sLOX-1). sLOX-1 is markedly elevated in patients with acute coronary syndrome (ACS). Methods: We prospectively assessed the associations between plasma sLOX-1 and th
