(n.) One of the two points of an orbit, as of a planet or satellite, which are at the greatest and least distance from the central body, corresponding to the aphelion and perihelion of a planet, or to the apogee and perigee of the moon. The more distant is called the higher apsis; the other, the lower apsis; and the line joining them, the line of apsides.
(n.) In a curve referred to polar coordinates, any point for which the radius vector is a maximum or minimum.
(n.) Same as Apse.
Example Sentences:
(1) Two previously reported pediatric severity scoring systems, the Admission Physiologic Stability Index (APSI) and the Organ System Failure (OSF) score were evaluated for 151 patients.
(2) The APSI was higher for children who died than for those who lived (p less than 0.001).
(3) It is anticipated that the APSI will be of value in a variety of treatment and research contexts.
(4) APSI shows that moderately severe postAMI patients can benefit from a beta-blocking treatment and a beta-blocker with mild intrinsic sympathomimetic activity can be effective.
(5) This difference reflected the sharp distinction between the APSI for children who left intensive care within 24 h and those remaining in ICU longer than 24 h (p less than 0.001).
(6) This article presents the multicenter development of the Adolescent Psychosocial Seizure Inventory (APSI), an empirically based self-report test patterned after the Washington Psychosocial Seizure Inventory, which is used to evaluate psychosocial problems in adults.
(8) LZEJ and APSI cells could readily be distinguished from each other after co-injection by using specific and sequential staining protocols of whole organs or sections; staining of host organ cells was minimized.
(9) After pilot work, 120 adolescents with epilepsy from five centers in North America took the APSI and were interviewed by professionals with respect to adequacy of adjustment in eight psychosocial areas.
(10) APsys (19%), and delta AP (43%) were significantly increased from predive values, with an additional increase detected for all these variables after 60 min at 30 bar.
(11) For children remaining in ICU longer than 24 h, there was a large overlap of APSI scores, and the APSI did not discriminate between children in the overlap region who lived and those who died (p = 0.054).
(12) There was underscoring of neurological patients; the APSI did not differentiate neurological patients whole lived and those who died (p greater than 0.10).
(13) Co-injection of the two tumor cell classes resulted in similar numbers of homogeneous microfoci in lungs of LZEJ or APSI cells within minutes after injection that persisted for several hours before clearance of most of them.
(14) Although the objective was not achieved, APSI patients were at a higher risk than the average of the 9 previous trials with beta blockers (12% instead of 7%).
(15) APSI was planned because patients with a death rate greater than 20% have not been enrolled in significant numbers in previous trials and in such high-risk patients, it remained to be proven that beta blockers have a beneficial effect.
(16) The observed chemical shifts suggest the existence of an atypical syn conformation for pseudouridine in the Apsi base pair in regulatory tRNAs in solution.
Perihelion
Definition:
(n.) Alt. of Perihelium
Example Sentences:
(1) It then plunges into the Sun's glare as it tracks towards perihelion, where it sweeps only 1,165,000 km above the Sun's surface on 28 November.
(2) Recall, too, that it was the then inexplicable Michelson-Morley experiment which encouraged the spread of Einstein's early ideas, and the baffling perihelion precession of Mercury which lent support to his general theory.
(3) After perihelion, and assuming enough of it has survived its scorching journey, ISON then reappears, tail first and moving northwards, to climb away from the Sun in both our morning and evening twilight.