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Optimal frequency combination estimation for accurate ultrasound non-destructive testing

A non-destructive testing system requires multiple system configuration parameters during the operation process. For a given transducer, scanning frequency and number of measurements for averaging are just among those parameters. This work tests the central limit theorem to optimally set these parameters. The authors have designed a compact ultrasound computer tomography scanner from scratch just

Swimming Suppresses Correlations in Dilute Suspensions of Pusher Microorganisms

Active matter exhibits various forms of nonequilibrium states in the absence of external forcing, including macroscopic steady-state currents. Such states are often too complex to be modeled from first principles, and our understanding of their physics relies heavily on minimal models. These are mostly studied in the case of "dry"active matter, where particle dynamics are dominated by friction wit

Public support for healthcare-mediated disclosure of hereditary cancer risk information : Results from a population-based survey in Sweden

Background: Targeted surveillance of at-risk individuals in families with increased risk of hereditary cancer is an effective prevention strategy if relatives are identified, informed and enrolled in screening programs. Despite the potential benefits, many eligible at-risk relatives remain uninformed of their cancer risk. This study describes the general public's opinion on disclosure of hereditar

Fast-tracking of single emitters in large volumes with nanometer precision

Multifocal plane microscopy allows for capturing images at different focal planes simultaneously. Using a proprietary prism which splits the emitted light into paths of different lengths, images at 8 different focal depths were obtained, covering a volume of 50x50x4 μm3. The position of single emitters was retrieved using a phasor-based approach across the different imaging planes, with better tha

Seasonal reconstructions coupling ice core data and an isotope-enabled climate model - Methodological implications of seasonality, climate modes and selection of proxy data

The research area of climate field reconstructions has developed strongly during the past 20 years, motivated by the need to understand the complex dynamics of the earth system in a changing climate. Climate field reconstructions aim to build a consistent gridded climate reconstruction of different variables, often from a range of climate proxies, using either statistical tools or a climate model

Revisiting the simplified IMC tuning rules for low-order controllers : Novel 2DoF feedback controller

This paper revisites the direct synthesis tuning method of continuous-time low-order controllers, and specially PID controllers, for control of time-delayed single-input single-output processes. A setpoint prefilter is included to improve the servo response and integrating load disturbances are accounted for. Robustness is addressed by the feedback controller to obtain the desired maximum sensitiv

THE EUROSDR GEOBIM PROJECT - DEVELOPING CASE STUDIES for the USE of GEOBIM in PRACTICE

Although the use of location-based data (location coupled with semantic information) within Geographical Information Systems (GIS) and from Earth Observation (e.g. satellite) sources has been long established for decision makers, this has only recently been reflected in the construction sector with a more recent move from Computer Aided Design (CAD) to Building Information Modelling. BIM has opene

Microelectrode cluster technology for precise interactions with neuronal circuits. Towards highly specific adaptive deep brain stimulation.

Neuro-electronic interfaces, which can be used for stable communication between neurons-computers over long periods of time, would be valuable for understanding and interacting with the nervous system. A major challenge has been to overcome the tissue reactions towards implanted electrodes. Flexible microelectrodes that cause less implantation injury and which can follow the micromotions of the br

The Association Between Hemoglobin Upswing in the Reference Range and Sleep Apnea Syndrome

PurposeSleep apnea syndrome (SAS) is a relatively common disorder, but many patients with SAS are still undiagnosed. Using Japanese annual health check and medical claims data, we analyzed the association between hemoglobin upswing, defined as an increase in hemoglobin level within the reference range, and the incidence of SAS.MethodsIn this study, we used the Japan Medical Database Center (JMDC)

Tracking and recognitional use of Kalamang "opa" : Demonstrative of cognitive accessibility

The Papuan language Kalamang has an adnominal demonstrativeopa, which marksreferents that are cognitively accessible either because they are common ground orbecause they are previously mentioned in the discourse. It is mainly an endophoricdemonstrative which has tracking and recognitional uses, but it can be used ex-ophorically as well. It can be used for both maintaining and reintroducing refer-e

Germline Genome Editing Research : What Are Gamete Donors (Not) Informed about in Consent Forms?

The potential for using germline genome editing (GGE) in humans has garnered a lot of attention, both for its scientific possibilities as well as for the ethical, legal, and social challenges it ignites. The ethical debate has focused primarily on the suggestions of using GGE to establish a pregnancy (i.e., to offer it in a clinical setting), which is, to date, illegal in many jurisdictions. The u

Risk Shifting or Risk Management: How do Firms Hedge in Financial Distress?

In this paper we address the question of how firms hedge in financial distress. Using hand-collected data from oil and gas producers, we show thatthe uniquecharacteristic of derivative portfolios in distressed firms is a strategythat involvessold put options. This is puzzling, considering that selling put options amounts to selling insurance, which creates a new liability that distressed firms seeIn this paper we address the question of how firms hedge in financial distress.Using hand-collected data from oil and gas producers, we show that the uniquecharacteristic of derivative portfolios in distressed firms is a strategy thatinvolves sold put options. This is puzzling, considering that selling put optionsamounts to selling insurance, which creates a new liability that distressed firmsseem