Objective: This study aimed to compare cumulative [fresh and frozen embryo transfers from one ovarian stimulation (OS) cycle] pregnancy and live birth rates in women for whom the choice between recombinant FSH (rFSH) and urinary FSH (uFSH) for OS was linked to FSH receptor (FSHR) N680S genotype and compared these to non-genotyped controls.Methods: To define the optimal combination of FSH type and

The structural evolution of molecular hydrogen H2 under multi-megabar compression and its relation to atomic metallic hydrogen is a key unsolved problem in condensed-matter physics. Although dozens of crystal structures have been proposed by theory1, 2, 3–4, only one, the simple hexagonal-close-packed (hcp) structure of only spherical disordered H2, has been previously confirmed in experiments5. T

Objective: Extremes of prepregnancy maternal BMI increase neonatal mortality and morbidity at term. They also increase the risk of extremely preterm (EP, i.e.,

Within the FLASH2020+ upgrade, the pump-probe laser capabilities of the extreme ultraviolet and soft x-ray free-electron laser (XFEL) FLASH in Hamburg will be extended. In particular, providing wavelength tunability, shorter pulse durations, and reduced arrival time jitter will increase the scientific opportunities and the time resolution for the XFEL-optical laser pump-probe experiments. We prese

Den här rapporten är en del av ett större utvecklingsprojekt och baseras på en serie digitala forskningscirklar för kuratorer inom hälso- och sjukvården som pågick mellan 2020 och 2022. Författarna undersöker, med hjälp av anteckningar från forskningscirklarna och egna erfarenheter som kliniskt verksamma kuratorer, hur deras arbete kan förstås både inom den egna professionen och i samverkan med an

Attosecond pulses, produced through high-order harmonic generation in gases, have been successfully used for observing ultrafast, subfemtosecond electron dynamics in atoms, molecules and solid state systems. Today’s typical attosecond sources, however, are often impaired by their low repetition rate and the resulting insufficient statistics, especially when the number of detectable events per shot

The frequency modulation transfer property of a backward-wave optical parametric oscillator (BWOPO) is investigated in the context of near-IR pulse compression. The maximum transferrable bandwidth from the pump to the forward wave in a BWOPO is determined by the group dispersion mismatch. In comparison, the third-order phase introduced in a single-grating compressor setup is more detrimental to ac

The strict momentum conservation constraints for backward-wave optical parametric oscillators (BWOPOs) gives an inherently narrowband backward-generated wave, even with broadband pumping. Unfortunately, the limited tuning range of this wave restricts potential applications. Here we demonstrate a method to circumvent this restriction and increase the tuning range by more than one order of magnitude

Mirrorless optical parametric oscillators (MOPOs) are very attractive parametric devices that rely on the nonlinear interaction of counter-propagating photons to inherently establish distributed feedback, without the use of external mirrors or surface coatings. These devices offer unique spectral and coherence properties that will benefit a large variety of applications ranging from spectroscopy t

This study addresses the challenge of precise, high-repetition-rate, single-shot measurements of the carrier–envelope phase in ultrafast optics. We constructed a Mach–Zehnder interferometer based on dual-arm white-light interference, and systematically investigated the intensity-to-phase coupling that arises during white-light generation. In the experiment, an acousto-optic modulator introduced sm

Strongly enhanced backward stimulated polariton scattering (BSPS) is demonstrated in periodically-poled KTiOPO4 (KTP) crystals with a high power-conversion efficiency up to 70%. We study the physical mechanism of such counter-propagating parametric interaction with phonon-polaritons in χ(2) modulated structures. BSPS is a three-wave mixing that is distinguished from backward stimulated Raman scatt

Against the backdrop of the European Union's Corporate Sustainability Reporting Directive (CSRD), this study focuses on the compliance practices of medium-sized automakers in China and Europe under resource constraints and differences in technological capabilities. Through a multi-case comparative analysis of six mid-sized automakers in Europe and Chin, the study systematically explores the di

Under de senaste åren har utvecklingen av artificiell intelligens frodats och med sig tagit en förbättrad träffsäkerhet i taligenkänning. Däremot, liksom med alla snabba teknologiska utvecklingar har den sina brister, i det här fallet bristen på dialektal träningsdata. Den här uppsatsen undersöker om AI har en ojämnt fördelad förståelse av regionalt språk, med fokus på försummandet av de sydsvenskThe recent surge in the development of artificial intelligence has greatly improved the accuracy of automatic speech recognition. However, as with all abrupt technical improvements, it will have its weaknesses, in this case the lack of dialectal training data. This thesis investigates if AI has an unevenly distributed understanding of regional speech, focusing on the disregard of southern Swedish

PURPOSE: To contribute to an in-depth understanding of how the concepts accessibility, usability, and universal design interact and can be harmonised to create conditions for participation in the 21st century.MATERIAL AND METHODS: Ideas, empirical research, and selected literature from health science, engineering, and design constituted the material for a scientifically grounded analysis.RESULTS:

A novel regularization method for shape optimization of contacting structures is proposed. The shape optimization avoids parameterizations via splines or the level set method by directly optimizing the nodes in the finite element mesh. In the past this approach was limited by numerical difficulties arising from mesh entanglement and serrated boundaries but recent advances in regularization techniq

Multimodal integration is currently being discussed as a way to challenge the dominance of automobility by providing attractive alternatives to private car ownership. Combining critical organisation studies with a mobilities perspective, this article maps actions taken towards integrated urban mobility in two Swedish cities over the course of a year and explores how these actions shape the roles a

Dwell time is crucial for railway operations, for example, 20% of the total travel time in a mass transit context in the Paris region. With this, it is also a source of delays due to its variability. One way to ensure the robustness of a timetable is to add margins as buffer time that can be consumed to absorb short delays. Much work has been done on run time margins, but dwell time margins receiv

Återbruk innebär att material och produkter återanvänds. Detta skiljer sig från återvinning genom att minimera ingrepp och bevara produkter innan de omvandlas till avfall. Återbruk i byggsektorn kan omfatta material som takpannor, skivor, betong, tegel, dörrar och fönster. För att möjliggöra återbruk finns metoder såsom att skydda material från påfrestningar, välja standardstorlekar, dokumentera mReuse involves reusing materials and products before they become waste. This differs from recycling by minimizing intervention and preserving products prior to their conversion into waste. Reuse in the building sector can include materials such as roof tiles, boards, concrete, bricks, doors, and windows. Enabling reuse involves methods such as protecting materials from damage, selecting standard s