98%
921
2 minutes
20
A method based on phase-shifting Fizeau interferometry is presented with which retroreflectors with large incoming-outgoing beam separations can be tested. The method relies on a flat Reference Bar that is used to align two auxiliary mirrors parallel to each other to extend the aperture of the interferometer. The method is applied to measure the beam coalignment of a prototype Triple Mirror Assembly of the GRACE Follow-On Laser Ranging Interferometer, a future satellite-to-satellite tracking device for Earth gravimetry. The Triple Mirror Assembly features a lateral beam offset of incoming and outgoing beam of 600 mm, whereas the acceptance angle for the incoming beam is only about ±2 mrad. With the developed method, the beam coalignment of the prototype Triple Mirror Assembly was measured to be 9 μrad with a repeatability of below 1 μrad.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1063/1.4866682 | DOI Listing |
Acta Anaesthesiol Scand
October 2025
Copenhagen Trial Unit, Centre for Clinical Intervention Research, The Capital Region, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
Introduction: Electronic health records can be used to create high-quality databases if data are structured and well-registered, which is the case for most perioperative data in the Capital and Zealand Regions of Denmark. We present the purpose and development of the AI and Automation in Anaesthesia (TRIPLE-A) database-a platform designed for epidemiology, prediction, quality control, and automated research data collection.
Methods: Data collection from the electronic medical record (EPIC Systems Corporation, WI, USA) was approved by the Capital Region, Denmark, and ethical approval was waived.
J Obstet Gynaecol Res
September 2025
Department of Pharmacology, Bengal School of Technology, Chuchura, West Bengal, India.
Aim: This review aims to delve into the systemic repercussions of various physiological indicators interrelated in mirror syndrome while an individual is pregnant. This review explores the role of pro-inflammatory cytokines and imbalances in angiogenic factors in disrupting placental function and contributing to endothelial damage in mirror syndrome. It also discusses how these physiological disturbances may affect maternal and fetal health.
View Article and Find Full Text PDFJ Clin Med
August 2025
Department of Internal Medicine, Hospital Universitario Infanta Leonor, 28031 Madrid, Spain.
The role of direct oral anticoagulants (DOACs) vs. vitamin K antagonists (VKAs) in preventing recurrent thrombosis in patients with antiphospholipid syndrome (APS) remains uncertain. Using real-world data, we aimed to evaluate the effectiveness and internal validity of a digital twin (DT) approach for modeling thrombotic recurrence risk in APS patients treated with DOACs or VKAs.
View Article and Find Full Text PDFJ Am Soc Nephrol
August 2025
Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Background: Water homeostasis is regulated by the peptide hormone arginine vasopressin (AVP), which promotes water reabsorption in the renal collecting duct. The regulation of Aqp2 gene transcription is a key mechanism through which AVP modulates water transport as disruption of this mechanism leads to water balance disorders. Therefore, an important goal is to understand the regulatory processes that control Aqp2 gene transcription.
View Article and Find Full Text PDFAnn Med Surg (Lond)
July 2025
Department of Research, Medical Research Circle (MedReC), Goma, DR Congo.
Introduction And Importance: Ballantyne syndrome, also known as triple edema or maternal mirror syndrome, is an extremely rare clinical condition characterized by maternal edema, placentomegaly, and fetal hydrops. Its rarity and overlapping symptoms often lead to misdiagnosis, particularly in resource-limited settings. Management is primarily etiological and focuses on addressing the underlying cause.
View Article and Find Full Text PDF