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The ferroelectric domain structure of a freestanding BiFeO3 film was visualized by ptychographic dichroic imaging with linearly polarized x-rays at the O K-edge around 530 eV. The dichroic contrast is maximized at the energy of the hybridization of the O 2p state and the Fe 3d orbitals, which is split by the octahedral crystal field of the perovskite structure. The microscopy images thus obtained
Background/Aim: An inverse association exists between type 2 diabetes mellitus (T2DM) and both plasma vitamin D levels and sun exposure, but vitamin D supplementation does not reduce the incidence. We sought to assess whether there is a dose-dependency in the association between sun exposure and T2DM. Patients and Methods: The melanoma in Southern Sweden (MISS) cohort is comprised of one thousand
The discovery of exoplanets has revealed an intriguing class of planets unlike anything in the Solar System: ultra-hot Jupiters. These gas giants share similarities with Jupiter in size and in their hydrogen- and helium-dominated atmospheres, yet their proximity to their host stars results in vastly different atmospheric conditions. Intense stellar radiation heats them to temperatures exceeding 20
Bone strength is a major contributor to fracture risk. Areal bone mineral density (aBMD) obtained from dual-energy X-ray absorptiometry (DXA) is used as a surrogate for bone strength in fracture risk prediction. 3D finite element (FE) models predict bone strength better than aBMD but need 3D computed tomography and are not automated. We have earlier developed a method to automatically reconstruct
Offentliga försäkringar kan göra äktenskap mindre sannolik, men för vem? Med hjälp av American Community Survey finner vi att en ökad sannolikhet att vara berättigad till offentlig hälsoförsäkring på grund av lagförändringar minskar giftermålsfrekvensen, särskilt bland personer med högre utbildningsnivåer. Vi utvecklar en sökmodell av äktenskapsmarknaden som visar att de med ett högt förväntat ekoPublic insurance may disincentivize marriage, but for whom? Using the American Community Survey, we find that an increased likelihood of Medicaid eligibility owing to the Affordable Care Act reduces marriage rates, particularly among people with higher education levels. We develop a search model of the marriage market that shows that those with a high expected financial surplus from marriage respo
The overall aim of this scoping review was to map the existing literature on residual placental blood volume in cesarean sections as an indirect measure of placental transfusion. Multiple databases including Pubmed, Cochrane, Embase and Web of Science were searched for relevant studies published between 1972 and 2023. All studies on cesarean sections with term pregnancies and information on residu
Introduction: Intact cord resuscitation promotes zero separation and facilitates skin-to-skin contact, regardless of delivery mode. Therefore, this study aims to illuminate parents' experiences of intact cord resuscitation in the mother's bed. Method: Interviews with seven mothers, one father and seven couples were analysed using Lindseth and Norberg's phenomenological hermeneutics. Results: The a
BACKGROUND: Long-term oxygen therapy (LTOT) improves survival in patients with chronic severe resting hypoxaemia, but effects on hospitalisation are unknown. This study evaluated the potential impact of starting LTOT on acute exacerbation and hospital burden in patients with chronic obstructive pulmonary disease (COPD), interstitial lung disease (ILD) and pulmonary hypertension (PH).METHODS: Longi
Deoxynivalenol (DON) is a common mycotoxin in crops that could induce intestinal inflammation, affecting the susceptibility of intestinal epithelial cells (IECs) to pathogen infection. This study aimed to investigate DON's effects on mucin and cytokine production as part of the local immune system and how it affected intestinal susceptibility to pathogen infection. Caco-2 cells were exposed to DON
Ethanolamines are often added in the empirical formulation of commercial hard-surface cleaners and degreasers. Their use is usually justified by the fact they are anti-corrosive agents. However, their direct influence on cleaning performance is not well understood. In this work the cleaning performance of formulations with and without mono-ethanolamine (MEA) have been tested on standard polymerize
BACKGROUND: Several widely used drugs have photosensitizing properties, and much research has been conducted to find associations between their use and the risk of developing cutaneous malignant melanoma (cM), basal cell carcinoma (BCC) or cutaneous squamous cell carcinoma (cSCC), often with conflicting results.OBJECTIVE: To assess whether the use of commonly prescribed photosensitizing drugs incr
The increasing demand for renewable energy accounts for the DC microgrid concept, facilitating the integration of photovoltaic (PV) modules and battery energy systems (BESS) into a common DC bus. In light of this, bipolar DC-DC converters can result in two symmetric DC buses that provide more flexibility. This article presents a hybrid bipolar converter by merging a single-ended primary-inductor c
Power converters of DC-DC nature are pivotal to supplying power in electronics, charging equipment, and renewable energy integration along with AC-DC converters. They are frequently used in most of the power supplies of electronic devices as well as dedicated high-energy functionalities including charging battery cells, electroplating, and welding. Furthermore, DC-DC switching regulators not only
Converters of AC-DC nature are pivotal to supplying power in electronics, charging equipment, and renewable energy integration. A closed-loop Cuk converter with switched capacitor network and PID controller was proposed in this paper to mitigate the limitations of open circuit Cuk converter topology to ensure improved power factor from input along with low distortion in output, making it ideal for
The development of an artificial neural network to analyze power system faults is currently under way. However, the produced system is unsatisfactory because it is prone to failure and takes longer to detect faults. The ultimate goal of this project is to create an artificial neural network system that can identify and classify all forms of faults in power grid lines soon after they occur. In prin
Microelectronic systems, wind energy applications, battery chargers, DC motor controllers, and home electric appliances all require AC/DC converters for power supply. With a high voltage conversion ratio and minimal EMI emissions, switching capacitor (SC) based converters could be a promising answer to the difficulties of the present century. A bridge SEPIC PFC converter with a mono-switching capa
The performance of graphene-based and multilayer MoS2 based MSM (metal-semiconductor-metal) photodetectors is compared in this study using analytical analysis and simulation. At varying voltages, optical powers, and wavelengths, the total illuminated current, photocurrent, and photo responsivity in these two photodiodes show distinct findings. While adjusting the wavelength of the incident light a
Power supplies for microelectronic systems, battery chargers, wind energy applications, electric appliances in the household and dc motor drives require AC-DC converters. The proposed bridgeless Cuk PFC converter in this paper is featured with common ground, transformerless structure, and clear energy delivery process. The absence of bridge rectifiers, transformer and the presence of only two semi
AC-DC converters are mostly used as power supplies for microelectronic systems, battery chargers, wind energy applications, electric appliances in household and dc motor drives. Switched-capacitor (SC) network based converters can be good solution to the challenges of 21st century having high voltage conversion ratio and low EMI emissions. The application of this type of converters is in microproc
