There are multiple definitions:
signal intensity(English)
Système International [d´unités et des mesures](French)
Special Investigator/Investigation(English)
similarity index(English)
shape index(English)
specialist in immunology(English)
sphericity index(English)
suicidal ideation(English)
- common during adolescence and may have lethal outcomes. Despite evidence of the high prevalence and impact of suicidality in adults with chronic pain, remarkably little is known about this group
- CP, TS, SH, DRTE, SA, SP
- Psychiatry, Pain, Suicide, Military medicine
- https://doi.org…000000000000366
- https://doi.org…706743717699174
standard incubator(English)
- aka conventional incubator (COI or CI)
- CI, COI, IVF, TLI
- Embryology /reproduction
- https://doi.org…0815-012-9750-x
substantia innominata(Latin)
- afferent connections can bedetermined employing the anterograde axonal transport of PHA-L and the retrograde transport of WGA-HRP, in combination with histochemical procedures to characterize the neuropil of the SI and identify cholinergic cells. Both neurochemical and connectional data establish that the SI is organized into a dorsal and a ventral division. Each of these divisions is strongly affiliated with a different region of the amygdala, and, together with its amygdalar affiliate, forms part of one of two largely distinct constellations of interconnected forebrain and brainstem cell groups. The dorsal part receives selective innervation from the lateral part of the bed nucleus of the stria terminalis, the central and basolateral nuclei of the amygdala, the fundus of the striatum, distinctive perifornical and caudolateral zones of the lateral hypothalamus, and caudal brainstem structures including the dorsal raphe nucleus, parabrachial nucleus, and nucleus of the solitary tract
- PHA-L, WGA-HRP
- Neurons, Brain (dys)function, Histochemistry
- https://doi.org…2/cne.902770302
[primary] somatosensory cortex(English)
- see also [secundary] somatosensory cortex
- SII
- Brain (dys)function
- https://doi.org…-4446-2018-0183
sacroiliac [joint](English)
- has several unique anatomical features that make it one of the more challenging joints to image
- MNT, SID
- Anatomy, Skeleton and bone (formation), Medical imaging
- https://doi.org…/s-2008-1067939
sustained inflation(English)
shock index(English)
- calculated as heart rate divided by systolic blood pressure. Widely used to estimate the shock status of patients with hemorrhage
- DSI, HR, ICU, SBP
- Emergency medicine, Post-traumatic state, Intensive care medicine, Ratio-based metric
- https://doi.org…al.pone.0258811
- https://doi.org…47/OAEM.S178358
serious infection(English)
sensitivity index for insulin(English)
selective index(English)
- validates the antiviral activities of chemical compounds
- KSHV
- Virology
- https://doi.org…al.ppat.1008156
scoring index(English)
stimulation index(English)
sagittal index(English)
- defined to assess the segmental deformity at the level of a (thoracolumbar burst) fracture. It is a measurement of the kyphotic segmental deformity corrected for the normal sagittal contour at the level of the deformed segment
- Spine (or spinal cord), Injury
- https://doi.org…199009000-00022
[overall] stability index(English)
- refers to stability under open-eye biped standing conditions
- LSI, PSI
- Musculoskeletal system
- https://doi.org…55/2022/8867724
self-immolative(English)
- linker designed to promote drug release in plasma
- BUP, SIF, TG
- Pharmacology / pharmaceutics
- https://doi.org…har.2022.879660
stiffness index(English)
- defined as the ratio of ln(SBP/DBP) and (pulse diameter/diastolic diameter)
- AASI, DBP, SBP
- Hemodynamics, Vessel properties, Ratio-based metric
- https://doi.org…1093/ajh/hpw061
synchronization index(English)
- electrical activity in the brain is presumed to arise from a combination of tonic asynchronous neuronal firing during wake and a synchronized, burst-pause firing of large number of neurons during sleep
- EEG, NREM
- Sleep medicine, Electrophysiology, Brain (dys)function, Neurons
- https://doi.org…000000000000325
superficial-intermediate(English)
- refers to images sorted as e.g. koilocytotic or dyskeratotic
- AI, WSI
- Microscopy, Classification, Diagnostics, Medical imaging, Oncology
- https://doi.org…55/2023/4214817
shoulder impairment(English)
- refers to ultrasound protocol for assessing subacromial structures
- DI
- Shoulder and other joints, Injury, Physical therapy
- https://doi.org…85.2017.1318419
satiety index(English)
- equal-calorie portions of breads, which vary in nutrient content and physical characteristics, produce a wide range of satiety responses
- T2DM
- Diet, Nutrition
- https://doi.org…8223(01)00192-4
social isolation(English)
- is a state of low social interaction with peers associated with various adverse health consequences in older adults living in the community
- Social aspects, Gerontology/Geriatrics
- https://doi.org…938-023-01080-4
spherity index(English)
sprint interval(English)
- as compared with endurance
- ACTH
- Sports medicine, Cortisol, Exercise & Training
- http://pubmed.n…ih.gov/2540392/
special issuance(English)