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Two different versions of an optical theorem for a scattering body embedded inside a lossy background medium are derived in this paper. The corresponding fundamental upper bounds on absorption are then obtained in closed form by elementary optimization techniques. The first version is formulated in terms of polarization currents (or equivalent currents) inside the scatterer and generalizes previou
The chemical evolution of fluorine is investigated in a sample of Milky Way red giant stars that span a significant range in metallicity from [Fe/H] ∼-1.3 to 0.0 dex. Fluorine abundances are derived from vibration-rotation lines of HF in high-resolution infrared spectra near 2.335 μm. The red giants are members of the thin and thick disk/halo, with two stars being likely members of the outer disk
Background: The Bethesda system for cytopathology (TBSRTC) is a 6-tier diagnostic framework developed to standardize thyroid cytopathology reporting. The aim of this study was to determine the risk of malignancy (ROM) for each Bethesda category. Methods: Thyroidectomy-related data from 314 facilities in 22 countries were entered into the following outcome registries: CESQIP (North America), Eurocr
The chemical composition of fossil foraminiferal shells (tests) is widely used as tracers for past ocean chemistry. It is, therefore, important to understand how different (trace) elements are transported and incorporated into these tests from adjacent seawater. The elemental distribution within the walls of foraminiferal tests might be used to differentiate between proposed transport mechanisms.
There is interest in increasing the consumption of foods with high dietary fiber content due to the health problems associated with its low intake. Plantain (Musa paradisiaca L.) flour (PF) (non-thermostable) and Hi-Maize 260 (HA) (thermostable) were used as resistant starch (RS) sources to elaborate blends with wheat (WF) and rice flours (RF) in a 50:50 ratio. Five blends were prepared (PF-WF, PF
The number of heating and cooling system using vertical borehole heat exchangers is increasingly rapidly in Sweden. Currently, there are over 600,000 installations, mostly using U-tube ground collectors. In recent years, several new ground collectors with innovative designs and configurations have been launched. They claim to have superior performance and competitive advantages over the convention
In this study, a multiphysics model is presented that predicts creep in three months old concrete cylinders subjected to drying. The model includes concrete hydration, and a moisture transport model with relative humidity as the driving potential. These parameters are important to include in order to simulate creep. The model was implemented in the finite element software COMSOL Multiphysics. The
This study presents a multiphysics model developed to predict the internal temperature and moisture development in a concrete reactor containment at an early age. The work is a part of the benchmark study, VeRCoR, provided by EDF. The model was applied on an experimental reactor containment mock-up erected in the vicinity of Paris. The 3D geometry was provided from VeRCoRs. The model includes conc
The chapter integrates physicalist and constructivist approaches to phenomena conventionally categorised as ‘labour’ and ‘energy’ by unravelling how the two entangled concepts reflect nineteenth-century modernity’s increasingly instrumental approach to both society and nature. Energy technologies became understood as the efficient harnessing of nature’s powers in much the same way as economists fo
An in vitro model was developed to characterize the electrical properties of silicon microfabricated recording electrodes, using a Cu-wire mimicing a neural signal source. Phosphorous doped electrodes were used to achieve an all silicon device. The model was used to study signal amplitude as a function of distance between the electrode surface and the signal source. Signal crosstalk to neighbourin
Prioriteringsplattformen formulerar centrala idéer om sjukvårdens mål ochvärden. De kan och bör vara oförändrade, även om förutsättningarna att uppnå demändras. Gränserna för de behov som samhället anser att den offentliga sjukvården ska tillgodose kan ändras utan att de grundläggande målen överges. Plattformen kan bidra till att förbättra förtroendet för den offentligt finansierade hälso- och sjuThe platform for priority-setting contains key ideas about the mission, goals and values of health care in Sweden. The basic idea is that health care resources should be distributed primarily according to need and effect, and secondarily according to cost-effectiveness. Nobody should be discriminated against on the basis of their gender, age, religion, ethnic origin or political views. We also nee
The Swedish Strategic Innovation Agenda for Geoenergy develops a strategy for highlighting the need for geoenergy research, development and innovation in relation to the business community and authorities. Sweden has a strong global position in the field. Geothermal energy is the thirdlargest renewable energy source in Sweden, along with wind power. Currently, approximately 18 TWh of renewable he
Thermal piles are building foundation piles which, in addition to transferring the load of the building to the ground, are also used as heat exchangers to provide thermal exchange with the ground. This article shortly presents field testing of thermal piles installed in soft sensitive clay in Gothenburg. The aim of the field tests is to study the thermo-mechanical response of the heating and cooli
BACKGROUND: The aim of the study was to review a local treatment protocol for sinonasal mucosal melanoma (SNMM) focusing on triple modality treatment (TMT), that is, neoadjuvant concomitant chemoradiotherapy (CRT) and surgery.METHODS: In a retrospective design, data on clinical presentation, treatment, and survival were retrieved for 22 consecutive patients from a tertiary referral center.RESULTS:
The transportation industry landscape is going through a massive transformation due to trends such as autonomous and electrified vehicles. The electrification trend has already started to display its ample influence on the automotive industry. New modern power and drivetrains need to be designed and manufactured based on the raising automakers’ requirements e.g. higher performance, better noise vi
Previous work has shown that reduced expression of PLCXD3, a member of the phosphoinositide-specific phospholipases (PI-PLC) family, impaired insulin secretion with an unclear mechanism. In the current study, we aim to investigate the mechanism underlying this effect using human islets and rat INS-1 (832/13) cells. Microarray and RNA sequencing data showed that PLCXD3 is among the highly expressed
The cellular and molecular mechanisms underlying specification of human hematopoietic stem cells (HSCs) remain elusive. Strategies to recapitulate human HSC emergence in vitro are required to overcome limitations in studying this complex developmental process. Here, we describe a protocol to generate hematopoietic stem and progenitor-like cells from human dermal fibroblasts employing a direct cell
Last year, we reported a perturbative theory of the Casimir-Lifshitz torque between planar biaxially anisotropic materials in the retarded limit [Thiyam et al., Phys. Rev. Lett. 120, 131601 (201810.1103/PhysRevLett.120.131601)], which is applied here to study the change in sign and magnitude of the torque with separation distance in biaxial black phosphorus having excess charge carriers. The study
