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Predicting Pathological Response Within the 1st Week of Chemotherapy Using Diffuse Optical Spectroscopic Imaging

ClinicalTrials.gov study NCT01277263. IPD Sharing: Not stated. Countries: 1. Publications: 0.

Magnetic Resonance Spectroscopic Imaging Study of Prostatic Fats to Distinguish the Difference Between High and Low Risk Prostate Cancer

ClinicalTrials.gov study NCT01780701. IPD Sharing: Not stated. Countries: 1. Publications: 0.

Serial MR Imaging and MR Spectroscopic Imaging for the Characterization of Lower Grade Glioma

ClinicalTrials.gov study NCT04540107. IPD Sharing: NO. Countries: 1. Publications: 0.

Hyperpolarized Carbon C 13 Pyruvate Magnetic Resonance Spectroscopic Imaging in Predicting Treatment Response in Patients With Prostate Cancer

ClinicalTrials.gov study NCT03581500. IPD Sharing: Not stated. Countries: 1. Publications: 0.

Metabolic Characteristics of Sarcoma In Vivo Using HP 13-C Magnetic Resonance Spectroscopic Imaging (MRSI)

ClinicalTrials.gov study NCT03759704. IPD Sharing: Not stated. Countries: 1. Publications: 0.

Monitoring Response to Neoadjuvant Chemotherapy in HER2 Negative Breast Cancer Using High-speed MR Spectroscopic Imaging

ClinicalTrials.gov study NCT03568448. IPD Sharing: NO. Countries: 1. Publications: 0.

Spectroscopic MRI, Proton Therapy, and Avastin for Recurrent Glioblastoma

ClinicalTrials.gov study NCT05284643. IPD Sharing: NO. Countries: 1. Publications: 0.

Non-Invasive Optical Spectroscopic Methods for Dehydration Identification in Marathon Trainees

ClinicalTrials.gov study NCT01981902. IPD Sharing: Not stated. Countries: 1. Publications: 0.

3T Perfluorocarbon-Filled Endorectal Magnetic Resonance Spectroscopic Imaging of Prostate

ClinicalTrials.gov study NCT00464724. IPD Sharing: Not stated. Countries: 1. Publications: 0.

Near-Infrared Spectroscopic (NIRS) Tissue Oxygen Saturation and the Vascular Occlusion Test in Cardiac Surgery Patients

ClinicalTrials.gov study NCT01712750. IPD Sharing: Not stated. Countries: 1. Publications: 0.

3T Endorectal Magnetic Resonance Spectroscopic Imaging (MRSI) of Prostate

ClinicalTrials.gov study NCT00429338. IPD Sharing: Not stated. Countries: 1. Publications: 0.

Spectroscopic Assessment of Intramyocardial Oxygen Saturation During Open-Heart Surgery

ClinicalTrials.gov study NCT06084091. IPD Sharing: NO. Countries: 1. Publications: 0.

Spectroscopic Evaluation of Middle Ear Infection (Withdrawn)

ClinicalTrials.gov study NCT01485471. IPD Sharing: Not stated. Countries: 0. Publications: 0.

Microscopic-spectroscopic Examination for Urothelial Tissue Characterization

ClinicalTrials.gov study NCT04310813. IPD Sharing: NO. Countries: 0. Publications: 0.

Raman Spectroscopic Analysis of Bronchoscopic Biopsy for Diagnosing Lung Cancer

ClinicalTrials.gov study NCT05799027. IPD Sharing: Not stated. Countries: 0. Publications: 0.

Functional Magnetic Resonance Imaging and 1H-Nuclear Magnetic Resonance Spectroscopic Imaging in Treating Patients With Newly Diagnosed Brain Tumors

ClinicalTrials.gov study NCT00005083. IPD Sharing: Not stated. Countries: 0. Publications: 0.

restrictednotspecifiedApr 2025View details →

Brightest M Dwarfs in the Northern Sky Spectroscopic Catalog

This table contains a spectroscopic catalog of the 1564 brightest (J < 9m) M-dwarf candidates in the northern sky, as selected from the SUPERBLINK proper-motion catalog (Lepine and Shara 2005, AJ, 129, 1483). Observations confirm 1408 of the candidates to be late-K and M dwarfs with spectral subtypes K7 - M6. From the low (mu > 40 mas yr-1) proper motion limit and high level of completeness of the SUPERBLINK catalog in that magnitude range, the authors estimate that their spectroscopic census most likely includes > 90% of all existing, northern-sky M dwarfs with apparent magnitude J < 9m. Only 682 stars in this sample are listed in the Third Catalog of Nearby Stars (CNS3, Gliese and Jahreiss 1991); most others are relative unknowns and have spectroscopic data presented here for the first time. Spectral subtypes are assigned based on spectral index measurements of CaH and TiO molecular bands; a comparison of spectra from the same stars obtained at different observatories, however, reveals that spectral band index measurements are dependent on spectral resolution, spectrophotometric calibration, and other instrumental factors. As a result, the authors find that a consistent classification scheme requires that spectral indices be calibrated and corrected for each observatory/instrument used. After systematic corrections and a recalibration of the subtype-index relationships for the CaH2, CaH3, TiO5, and TiO6 spectral indices, the authors find that they can consistently and reliably classify all the stars to a half-subtype precision. The use of corrected spectral indices further requires them to recalibrate the zeta parameter, a metallicity indicator based on the ratio of TiO and CaH optical bandheads. However, the authors find that their zeta values are not sensitive enough to diagnose metallicity variations in dwarfs of subtypes M2 and earlier (+/- 0.5 dex accuracy) and are only marginally useful at later M3-M5 subtypes (+/- 0.2 dex accuracy). Fits of their spectra to the Phoenix atmospheric model grid are used to estimate effective temperatures. These suggest the existence of a plateau in the M1-M3 subtype range, in agreement with model fits of infrared spectra but at odds with photometric determinations of Teff. Existing geometric parallax measurements are extracted from the literature for 624 stars, and are used to determine spectroscopic and photometric distances for all the other stars. Active dwarfs are identified from measurements of H-alpha equivalent widths, and the authors find a strong correlation between H-alpha emission in M dwarfs and detected X-ray emission from ROSAT and/or a large UV excess in the GALEX point source catalog. Proper motion data and photometric distances are combined in order to evaluate the (U, V, W) distribution in velocity space, which is found to correlate tightly with the velocity distribution of G dwarfs in the solar neighborhood. However, active stars show a smaller dispersion in their space velocities, which is consistent with those stars being younger on average. The authors state that this catalog will be very useful for guiding the selection of the best M dwarf targets for exoplanet searches, in particular those using high-precision radial velocity measurements. This online catalog was created by the HEASARC in June 2013 based on a machine-readable version of Tables 1, 3 and 7 from the paper which were obtained from the AJ website (Tables 1 and 3) or from the first author (Table 7). This is a service provided by NASA HEASARC .

restrictedus-pdMar 2025View details →

IHW COMET HALLEY REDUCED SPECTROSCOPIC OBSERVATIONS V1.0

NASA's International Halley Watch (IHW) has created a Comet Halley Archive. The collection of data spans the full wavelength range as submitted by scientists to the IHW. The observations belong to one of the following Disciplines: Amateur, Astrometry, Infrared Studies, Large-Scale Phenomena, Meteor Studies, Near-Nucleus Studies, Photometry and Polarimetry, Radio Studies, and Spectroscopy and Spectrophotometry. The data collected by these nine disciplines were augmented by Spacecraft measurements. The data were submitted to IHW, but the evaluation and selection for the Archive has been the primary responsibility of the Discipline Specialist Teams for each network in cooperation with the Lead Center. The Spectroscopy and Spectrophotometry Network collected 2732 files of data which were classified as 'reduced', which means that at least wavelength is calibrated and in some cases flux as well. Some data on non-Halley targets for the spectroscopic observations can be grouped according to 'laboratory' calibration, dark, bias, flatfield, sky, and photometric standards. In the first category, a large number of 'arcs' and 'lamps' were used as follows: HE-NE, TH-AR, NE-AR, CU-AR, CU-NE, Thorium, Tungsten, Quartz, and Rubidium. For the 'sky' observers used the twilight, moonlight, and blank sky. The most common 'photometric' standards were stars, but observers also included other comets (Hartley-Goode), asteroids (Ceres), reflection nebulae (R8), and emission nebulae (NGC1982, NGC7000). A list of these stellar calibration targets follows: HD 140283, HD 184711, HD89688, HD102870, HD120086, HD13974, HD219188, HD 25680, HD 19445, HD18803, HD30455, HD26912, SAO 1280, HZ15, CD-22 7696, GD 190, GC5106, GC2188, GC2192, G19113213, G 99-37, L745-46A, Feige 15, Feige 56, Landolt 98, Landolt 92, Van Beuren, RHO ORION, CHI 1 ORION, 29 PI LEO. These data consisted of both one and two dimensional data covering the date range from 1984 December 23 through 1988 February 17.

restrictednotspecifiedApr 2025View details →

Spitzer Extragalactic First Look Survey SDSS Spectroscopic Catalog

The Extragalactic First Look Survey is composed of 4 square degrees of imaging with MIPS and IRAC centered at J1718+5930, with extensive ancillary data from ground-based optical and radio telescopes. As one of the first observations made with Spitzer after the completion of Science Verification at the end of 2003 November, the aim of this 67 hr survey was to characterize the extragalactic source populations observed with Spitzer down to sub-millijansky levels in the mid-infrared. This catalog presents the SDSS spectroscopic information from Papovich et al. (2006).