Laser Guide Star Adaptive Optics (LGS AO) systems use the return from an artificial guide star to measure the wavefront aberrations in the direction of the science object. We observe quasi-static differences between the measured wavefront and the wavefront aberration of the science object. This paper quantifies and explains the source of the difference between the wavefronts measured using an LGS and a natural guide star at the W. M. Keck Observatory, which can be as high as 1000 nm RMS.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/oe.14.007535 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Tracing the inner edge of the habitable zone with sulfur chemistry.
Sci Adv
January 2025
Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, UK.
The circumstellar liquid-water habitable zone guides our search for potentially inhabited exoplanets but remains observationally untested. We show that the inner edge of the habitable zone can now be mapped among exoplanets using their lack of surface water, which, unlike the presence of water, can be unambiguously revealed by atmospheric sulfur species. Using coupled climate-chemistry modeling, we find that the observability of sulfur gases on exoplanets depends critically on the ultraviolet (UV) flux of their host star, a property with wide variation: Most M-dwarfs have a low UV flux and thereby allow the detection of sulfur gases as a tracer of dry planetary surfaces; however, the UV flux of Trappist-1 may be too high for sulfur to disambiguate uninhabitable from habitable surfaces on any of its planets.
View Article and Find Full Text PDFComprehensive guide for epigenetics and transcriptomics data quality control.
STAR Protoc
January 2025
Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, MA, USA. Electronic address:
Host response to environmental exposures such as pathogens and chemicals can include modifications to the epigenome and transcriptome. Improved signature discovery, including the identification of the agent and timing of exposure, has been enabled by advancements in assaying techniques to detect RNA expression, DNA base modifications, histone modifications, and chromatin accessibility. The interrogation of the epigenome and transcriptome cascade requires analyzing disparate datasets from multiple assay types, often at single-cell resolution, derived from the same biospecimen.
View Article and Find Full Text PDFUtilizing pharmacy technicians for medication adherence patient outreach in an ambulatory care setting.
Am J Health Syst Pharm
January 2025
Community Health Network, Indianapolis, IN, USA.
Disclaimer: In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.
View Article and Find Full Text PDFMechanical thrombectomy in elderly stroke patients with low ASPECTS: insights from STAR.
J Neurointerv Surg
January 2025
Department of Neurosurgery, Division of Neuroendovascular Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
Background: The elderly population (≥80 years) were underrepresented in recent trials of endovascular thrombectomy (EVT) for anterior circulation large vessel occlusion acute ischemic stroke (LVO-AIS) with low Alberta Stroke Program Early CT Score (ASPECTS) (≤5).
Methods: This study analyzed data from a prospectively maintained database of 37 thrombectomy centers. The primary cohort of the study comprised patients with LVO-AIS aged ≥80 who underwent EVT with ASPECTS≤5 from 2013 to 2023.
Protocol for oral fecal gavage to reshape the gut microbiota in mice.
STAR Protoc
January 2025
Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; Grandulate Institute of Biomedical Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan. Electronic address:
Fecal microbiota transplantation (FMT) is clinically applied, while oral FMT (oral fecal gavage [OFG]) is preferred for experimental mice. Here, we present a protocol for OFG in antibiotic-pretreated mice, demonstrating the progressive, time-dependent evolution of the gut microbiota in the recipients. We describe steps for fecal sample collection and preparation procedures, oral gavage, and monitoring gut microbiota changes.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!