منابع مشابه
BeppoSAX LECS background subtraction techniques
We present 3 methods for the subtraction of non-cosmic and unresolved cosmic backgrounds observed by the Low-Energy Concentrator Spectrometer (LECS) on-board BeppoSAX. Removal of these backgrounds allows a more accurate modeling of the spectral data from point and small-scale extended sources. At high (>|25|) galactic latitudes, subtraction using a standard background spectrum works well. At lo...
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This review considers many new basic and clinical aspects of parathyroid hormone (PTH). We focus especially on the identification of PTH fragments and how they may relate to renal failure, diagnosis, and treatment of secondary hyperparathyroidism and renal osteodystrophy. The biosynthesis and metabolism of PTH, measurement of circulating forms of PTH, the effects of PTH on receptor activation a...
متن کاملLaparoscopic endoscopic cooperative surgery (LECS) for the upper gastrointestinal tract.
We developed the laparoscopic and endoscopic cooperative surgery (LECS) technique, which combines endoscopic submucosal dissection (ESD) and laparoscopic gastric resection to resect gastric submucosal tumors (SMTs). Many researchers have reported LECS to be a feasible technique for gastric submucosal tumor resection regardless of tumor location, including the esophagogastric junction (EGJ). Rec...
متن کاملAn improvement of the BeppoSAX LECS and MECS positioning accuracy
We present a study of the source positioning accuracy of the LECS and MECS instruments on-board BeppoSAX. From the analysis of a sample of archival images we find that a systematic error, which depends on the spacecraft roll angle and has an amplitude of ∼ 17” for the LECS and ∼ 27” for the MECS, affects the sky coordinates derived from both instruments. The error is due to a residual misalignm...
متن کاملThe BeppoSAX LECS X-ray spectrum of Hercules X-1
We present 0.1–10 keV observations of HerX-1 obtained with the Low-Energy Spectrometer Concentrator instrument onboard the BeppoSAX satellite during the main on-state of the 35 day cycle. We confirm the existence of an intense 0.093 keV blackbody component and a broad emission feature at 0.94 keV. The pulse phase dependence of these components is similar, suggesting a common origin. This is mos...
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ژورنال
عنوان ژورنال: Japan journal of water pollution research
سال: 1984
ISSN: 0387-2025
DOI: 10.2965/jswe1978.7.263