A new plane grating monochromator is described which uses off-axis parabolas. The optical arrangement is such that extremely sharp spectral line images of constant curvature are realized at mirror angles large enough to prohibit the possibility of multiple dispersion.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1364/AO.8.000925 | DOI Listing |
Zh Vopr Neirokhir Im N N Burdenko
September 2023
Burdenko Neurosurgical Center, Moscow, Russia.
The authors present an extremely rare case of metastatic brain lesion in a patient with gastrointestinal stromal tumor of the stomach. There are literature data on 23 cases of metastatic lesions of the brain, skull and soft tissues of the head in similar patients. Atypical localization of metastases can lead to some diagnostic difficulties, unreasonable cancellation of chemotherapy and delayed surgical treatment.
View Article and Find Full Text PDFMedicine (Baltimore)
November 2022
Department of Rehabilitation Medicine, Wakayama Medical University, Wakayama city, Wakayama, Japan.
Trial Design: How body position affects unilateral spatial neglect (USN) is unclear. This cluster randomized trial aimed to examine the effects of different positions (supine, sitting, and standing) on USN in stroke patients.
Methods: Twenty stroke patients (hemorrhage [n = 11], infarction [n = 9]) who were right-handed, had left hemiplegia due to right hemisphere damage that occurred within the last 2 years, and were in a state of arousal with a Glasgow Coma Scale score of 15 were included in the study.
Trials
July 2022
IU Center of Aging Research, Regenstrief Institute, Indianapolis, IN, USA.
Background: Delirium is a highly prevalent and morbid syndrome in mechanically ventilated intensive care unit (ICU) patients. Music is a promising non-pharmacological intervention with beneficial effects on anxiety and stress, while its effects on delirium duration and severity are not well understood.
Methods/design: Our study is a two-arm, randomized parallel-group, clinical trial to evaluate the efficacy of music intervention compared to a silence-track attention control on delirium/coma duration in mechanically ventilated critically ill older adults.
The space-based gravitational wave detection programs, like the Laser Interferometer Space Antenna (LISA) or the Taiji program, aim to detect gravitational waves in space with a triangular constellation of three spacecraft. The unavoidable jitters of the spacecraft and the pointing will couple with the misalignment of the interfering beams into the longitudinal path length readout. This effect is called tilt-to-length (TTL) coupling, which is one of the keys to achieving the required measuring accuracy of 1/.
View Article and Find Full Text PDFJ Craniofac Surg
September 2020
Third People's Hospital of Hubei Province, Wuhan, China.
In order to summarize the experience of neurosurgery in The Third People's Hospital of Hubei Province after the outbreak of COVID-19 in 2019, 28 patients were admitted from January 5, 2020 to February 17, 2020. A series of department formulates and constant improvements were made, including elective operation cancellation, altered conventional outpatient service into online outpatient service, strict control of inter department consultation prevention and entering the department, improvements in operation and treatment processes, and strict ward management. As a result, 1 patient with hypertensive cerebral hemorrhage and deep vein thrombosis of the right lower extremity died suddenly due to pulmonary embolism during anticoagulation treatment.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!