Results 251 to 260 of about 4,499,219 (309)

Factors Associated With Fibromyalgia Diagnosis Among People Meeting Criteria: Results From UK Biobank

Arthritis Care &Research, EarlyView.
Objective The diagnosis of fibromyalgia (FM) is challenging due to the absence of definitive biomarkers, numerous overlapping comorbidities, and its reliance on patient‐reported symptoms. Discrepancies between diagnostic criteria and clinical practice imply the possibility of diagnostic biases, complicating timely and accurate identification.
Sung‐A Kim, Gary J. Macfarlane, Marcus J. Beasley   +2 more
wiley   +1 more source

A Five-Step Approach to Acute Vision Loss: A Practical Narrative Review for Clinicians. [PDF]

Clin Ophthalmol
Maher C, Guo B, Yek J.
europepmc   +1 more source

Nasopharyngeal carcinoma masquerading as a primary sinonasal mass: a case report. [PDF]

J Med Case Rep
Lahiri A, Roy N.
europepmc   +1 more source

On the coincidence between the close passage of HD7977 and the Pliocene-Pleistocene transition. [PDF]

Sci Rep
Cao Z, Loeb A, MacLeod M.
europepmc   +1 more source

Assessing BeiDou-3 PPP-B2b with Signal-in-Space Ranging Error (SISRE) and Its Performances in Positioning and ZTD Estimation. [PDF]

Sensors (Basel)
Wang G, Li F, Zhou W, Chen G, Zhu Z, Jia X, An Q.   +6 more
europepmc   +1 more source

Space-Based Observations of Plasma Waves During Conjunctions Between Host Sensors and Space Objects. [PDF]

J Astronaut Sci
Scott L, Bernhardt P, Howarth A.
europepmc   +1 more source

A Survey of Current Operations-Ready Thermospheric Density Models for Drag Modeling in LEO Operations. [PDF]

J Astronaut Sci
Mutschler S, Pilinski M, Bruinsma S, Sutton E, Tobiska WK, Knipp D, Fang TW, Casali S, Mallik V, DiLorenzo B, Siemes C.   +10 more
europepmc   +1 more source

Bearings-Only Initial Relative Orbit Determination

Journal of Guidance, Control, and Dynamics, 2015
A method for performing bearings-only initial relative orbit determination of a nearby space object in the absence of any information regarding the space object’s geometry and relative orbit is presented. To resolve the range ambiguity characteristic of a single optical sensor system, a second optical sensor is included at a known baseline distance on ...
Kyle Demars
exaly   +3 more sources

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Cislunar Initial Orbit Determination with Optical Tracklets

AMOS 2023 Technical Papers, 2023
A study is presented that characterizes the capabilities to initiate tracks for cislunar space objects. KBR is working toward standing up an end-to-end cislunar cataloging capability. One of the first steps in tracking a cislunar satellite is to find and
John Gaebler, Keric Hill, Charles J. Wetterer   +2 more
openaire   +2 more sources

Probabilistic Initial Orbit Determination [PDF]

, 2016
Future space surveillance requires dealing with uncertainties directly in the initial orbit determination phase. We propose an approach based on Taylor differential algebra to both solve the initial orbit determination (IOD) problem and to map uncertainties from the observables space into the orbital elements space. This is achieved by approximating in
ARMELLIN, ROBERTO, DI LIZIA, PIERLUIGI
core   +4 more sources