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Abbreviation: SI
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Long Form No. Long Form Research Area Co-occurring Abbreviation PubMed/MEDLINE Info. (Year, Title)
selectivity index
(1423 times)
Chemistry
(192 times)
PBMC (50 times)
PHA (41 times)
LLNA (30 times)
1975 Salicylate saturation index in neonatal jaundice.
signal intensity
(1208 times)
Radiology
(556 times)
MRI (277 times)
MR (227 times)
ADC (112 times)
1983 NMR imaging of leg tumors.
suicidal ideation
(526 times)
Psychiatry
(271 times)
SA (74 times)
PTSD (47 times)
MDD (39 times)
1995 Suicidal ideation and behaviours among university students in Australia.
self-incompatibility
(470 times)
Botany
(166 times)
SC (86 times)
SRK (44 times)
GSI (27 times)
1975 Self compatibility in garden Chrysanthemum: occurrence, inheritance and breeding potential.
sensitivity
(467 times)
Endocrinology
(187 times)
DI (57 times)
BMI (42 times)
AIRg (35 times)
1983 PACBERG: an adaptive program for controlling the blood sugar.
superior-inferior
(403 times)
Neoplasms
(158 times)
AP (317 times)
LR (138 times)
PTV (53 times)
1983 Assessment of left atrial dimensions by cross sectional echocardiography in patients with mitral valve disease.
stroke index
(384 times)
Cardiology
(52 times)
CI (142 times)
HR (94 times)
MAP (39 times)
1975 Echocardiographic observations in hypertension.
sacroiliac
(357 times)
Rheumatology
(73 times)
MRI (57 times)
SpA (38 times)
AS (34 times)
1975 [Value and limitatious of scintigraphy of the sacro-iliac joints using technetium pyrophosphate].
small intestine
(284 times)
Veterinary Medicine
(38 times)
LI (23 times)
GI (12 times)
WT (12 times)
1980 Relationships between eating rate of sheep and live weight gain, weight and fill of the gastrointestinal tract.
10  stiffness index
(236 times)
Orthopedics
(45 times)
QUS (77 times)
BUA (76 times)
SOS (72 times)
1994 [An epidemiological study on osteoporosis using ultrasound bone densitometry].
11  syncytium-inducing
(225 times)
Virology
(86 times)
NSI (134 times)
HIV-1 (81 times)
HIV (21 times)
1988 Differences in bovine parainfluenza 3 virus variants studied by sequencing of the genes of viral envelope proteins.
12  sucrase-isomaltase
(208 times)
Biochemistry
(49 times)
LPH (24 times)
MGAM (21 times)
APN (14 times)
1977 Immunohistochemical localization of intestinal glycosidases.
13  shock index
(195 times)
Emergency Medicine
(46 times)
HR (42 times)
SBP (37 times)
ROC (25 times)
1992 The role of central venous oximetry, lactic acid concentration and shock index in the evaluation of clinical shock: a review.
14  serum iron
(137 times)
Hematology
(22 times)
TIBC (61 times)
Hb (53 times)
SF (52 times)
1977 Iron metabolism in Trypanosoma lewisi infection: serum iron and serum iron-binding capacity.
15  social interaction
(130 times)
Behavioral Sciences
(36 times)
EPM (26 times)
BLA (9 times)
CRF (9 times)
1985 Pharmacological characterisation of a modified social interaction model of anxiety in the rat.
16  staining index
(108 times)
Neoplasms
(23 times)
BMI (6 times)
CI (6 times)
OS (6 times)
1989 Value of ER-D5 immunocytochemical determination in routine tissue sections of human breast cancer.
17  similarity index
(106 times)
Diagnostic Imaging
(23 times)
ICC (11 times)
sEMG (10 times)
FLAIR (8 times)
1991 Identification of clinical isolates of gram-negative nonfermentative bacteria by an automated cellular fatty acid identification system.
18  System of Units
(106 times)
Chemistry Techniques, Analytical
(33 times)
NIST (8 times)
CRM (7 times)
CRMs (6 times)
1973 International system of units (SI) in physiology.
19  substantia innominata
(97 times)
Neurology
(45 times)
AD (11 times)
ChAT (9 times)
NBM (9 times)
1976 Projections of the globus pallidus and adjacent structures: an autoradiographic study in the monkey.
20  symptom index
(96 times)
Gastroenterology
(72 times)
SAP (33 times)
GERD (31 times)
NERD (26 times)
1988 The symptom index: a clinically important parameter of ambulatory 24-hour esophageal pH monitoring.
21  sequential injection
(87 times)
Chemistry Techniques, Analytical
(65 times)
FI (14 times)
EP (4 times)
ETAAS (4 times)
1991 Differential action of amitriptyline on neurons in the trigeminal nucleus.
22  synergy index
(78 times)
Medicine
(9 times)
RERI (31 times)
AP (29 times)
OR (19 times)
1993 Effects of environment on atopic status and respiratory disorders in children.
23  social isolation
(74 times)
Neurology
(24 times)
GH (10 times)
DG (5 times)
PH (4 times)
1990 The effect of sensory deprivation and ego strength on a measure of autistic thinking.
24  severity index
(68 times)
Hematology
(11 times)
CI (5 times)
SCD (5 times)
CAIM (4 times)
1981 Rh isoimmunization: a 24 year experience at Duke University Medical Center.
25  sensory integration
(66 times)
Rehabilitation
(15 times)
EI (8 times)
ASD (5 times)
NDT (4 times)
1976 Spatiotemporal organization of cat lateral geniculate receptive fields.
26  serious infection
(66 times)
Rheumatology
(14 times)
RA (10 times)
TI (5 times)
CI (3 times)
1983 The atrial proliferative response following partial ventricular amputation in the heart of the adult newt. A light and electron microscopic autoradiographic study.
27  social inhibition
(66 times)
Psychiatry
(23 times)
NA (55 times)
CAD (6 times)
SE (6 times)
2000 Type D personality. A potential risk factor refined.
28  sustained inflation
(66 times)
Pediatrics
(20 times)
PEEP (14 times)
ARDS (13 times)
CC (8 times)
1988 Lung volume recruitment during high-frequency oscillation in atelectasis-prone rabbits.
29  Structured Interview
(65 times)
Psychiatry
(26 times)
JAS (16 times)
CHD (6 times)
TABP (6 times)
1980 Cross-validation of the A/B typology in The Netherlands.
30  spectroscopic imaging
(63 times)
Diagnostic Imaging
(45 times)
NAA (8 times)
ADC (5 times)
Cho (5 times)
1989 Phosphorus-31 magnetic resonance spectroscopy in humans by spectroscopic imaging: localized spectroscopy and metabolite imaging.
31  special intervention
(58 times)
Cardiology
(12 times)
UC (34 times)
MRFIT (15 times)
CHD (10 times)
1982 Multiple risk factor intervention trial. Risk factor changes and mortality results. Multiple Risk Factor Intervention Trial Research Group.
32  symmetry index
(58 times)
Physiology
(15 times)
PVF (8 times)
GRF (5 times)
EMG (3 times)
1988 Symmetry analysis of cell nuclei.
33  somatic sensory cortex
(53 times)
Neurology
(30 times)
HRP (9 times)
SII (6 times)
CO (4 times)
1974 Functional organization of cortical motor areas in adult dogs and puppies.
34  simulated ischemia
(51 times)
Cardiology
(21 times)
IPC (6 times)
iNOS (5 times)
SR (4 times)
1989 Influence of rate-dependent cellular uncoupling on conduction change during simulated ischemia in guinea pig papillary muscles: effect of verapamil.
35  Strain Index
(45 times)
Occupational Medicine
(12 times)
US (6 times)
HR (5 times)
ACGIH (4 times)
2003 Comparison of ergonomic risk assessment outputs from Rapid Upper Limb Assessment and the Strain Index for tasks in automotive assembly plants.
36  situs inversus
(42 times)
General Surgery
(12 times)
PCD (6 times)
LDLT (5 times)
BA (3 times)
1983 Situs inversus: the complex inducing neonatal intestinal obstruction.
37  stability index
(42 times)
Ophthalmology
(9 times)
FI (10 times)
HOAs (8 times)
WDI (4 times)
1985 Normal surface properties of phosphatidylglycerol-deficient surfactant from dog after acute lung injury.
38  sphericity index
(40 times)
Cardiology
(20 times)
LV (18 times)
MR (4 times)
LA (3 times)
1976 Geometry of normal mammalian platelets by quantitative microscopic studies.
39  systemic inflammation
(32 times)
Gastroenterology
(5 times)
LPS (8 times)
CRP (5 times)
ACLF (4 times)
2006 Cold-seeking behavior as a thermoregulatory strategy in systemic inflammation.
40  sputum induction
(29 times)
Pulmonary Medicine
(17 times)
BAL (6 times)
TB (6 times)
AFB (3 times)
1992 Cost reduction in diagnosing Pneumocystis carinii pneumonia. Sputum induction versus bronchoalveolar lavage as the initial diagnostic procedure.
41  stress incontinence
(29 times)
Urology
(15 times)
UI (10 times)
DI (2 times)
OI (2 times)
1986 The setting-up of an ambulatory urologic-gynecologic service. Management of patients and results.
42  stroke volume index
(29 times)
Critical Care
(7 times)
CI (19 times)
HR (12 times)
SVRI (8 times)
1981 Canine left ventricular volume response to mechanical ventilation with PEEP.
43  sagittal index
(28 times)
Orthopedics
(13 times)
ODI (4 times)
RA (4 times)
CA (3 times)
1990 Sagittal index in management of thoracolumbar burst fractures.
44  stable isotope
(28 times)
Environmental Health
(6 times)
FA (6 times)
MS (2 times)
POM (2 times)
2009 Application of stable isotope methodology in the evaluation of the pharmacokinetics of (S,S)-3-[3-(methylsulfonyl)phenyl]-1-propylpiperidine hydrochloride in rats.
45  sacroiliitis
(27 times)
Rheumatology
(14 times)
AS (12 times)
MRI (4 times)
BD (3 times)
1977 HLA B27 and sacroiliitis in Pima Indians--association in males only.
46  susceptible-infected
(27 times)
Biology
(5 times)
SIR (5 times)
SIS (3 times)
CMJ (1 time)
2004 Rational behavioral response and the transmission of STDs.
47  sodium iodate
(26 times)
Ophthalmology
(8 times)
RPE (10 times)
AMD (8 times)
ERG (8 times)
1983 Effect of the combination of dexamethasone and sodium ipodate on serum thyroid hormones in Graves' disease.
48  splenic irradiation
(26 times)
Neoplasms
(13 times)
PLL (4 times)
CLL (3 times)
B-CLL (2 times)
1975 The role of splenic irradiation in chronic lymphocytic leukemia.
49  stenosis index
(26 times)
General Surgery
(9 times)
HP (7 times)
CEB (3 times)
FSGS (3 times)
1990 [The effects of oral adsorbent (AST-120) in the experimental model of chronic renal failure--pathophysiological study on renal function, glomerular hypertrophy, mesangial function and glomerular histology].
50  smoothness index
(25 times)
Vascular Diseases
(9 times)
BP (12 times)
ABPM (6 times)
DBP (4 times)
1999 Spatial distribution of QT dispersion measured by magnetocardiography under stress in coronary artery disease.
51  socially isolated
(25 times)
Brain
(5 times)
GH (10 times)
EtOH (4 times)
ALLO (3 times)
2004 Regional brainstem expression of Fos associated with sexual behavior in male rats.
52  Systeme International
(25 times)
Obstetrics
(4 times)
CBCs (2 times)
AFM (1 time)
CRM (1 time)
1975 Anaesthesia and the Systeme International (SI).
53  speech intelligibility
(24 times)
Audiology
(8 times)
SNR (4 times)
EPSM (2 times)
IBM (2 times)
1991 Effects of a single reflection with varied horizontal angle and time delay on speech intelligibility.
54  structured illumination
(24 times)
Ophthalmology
(15 times)
DHM (2 times)
CASI (1 time)
CS (1 time)
2011 Subdiffraction scattered light imaging of gold nanoparticles using structured illumination.
55  soy isoflavones
(23 times)
Public Health
(3 times)
eNOS (2 times)
i.g (2 times)
LH (2 times)
2006 [Soy isoflavones with supplemental calcium provide protection against the loss of bone mass and influence insulin-like growth factor (IGF)-I after ovariectomy in rat].
56  spinal cord isolation
(23 times)
Physiology
(19 times)
MHC (12 times)
MG (5 times)
CON (3 times)
1991 Enzymatic responses of cat medial gastrocnemius fibers to chronic inactivity.
57  staining intensity
(23 times)
Neoplasms
(9 times)
PP (6 times)
IRS (4 times)
LI (3 times)
1986 Comparative histological, histochemical, immunohistochemical and biochemical studies on oestrogen receptors, lectin receptors, and Barr bodies in human breast cancer.
58  swine influenza
(21 times)
Veterinary Medicine
(10 times)
SIV (5 times)
CRP (3 times)
HA (3 times)
2002 Infectious and rearing-system related risk factors for chronic pleuritis in slaughter pigs.
59  safety index
(20 times)
Nutritional Sciences
(7 times)
GI (5 times)
AUC (2 times)
BW (1 time)
1986 Development of a safety index for manual lifting tasks.
60  spark ignition
(20 times)
Environmental Health
(14 times)
CI (4 times)
PM (4 times)
NN (3 times)
1999 Assessment of Nontailpipe Hydrocarbon Emissions from Motor Vehicles.
61  serial interval
(19 times)
Communicable Diseases
(5 times)
SAR (2 times)
BSRs (1 time)
CI (1 time)
2002 The time from diagnostic excision biopsy to wide local excision for primary cutaneous malignant melanoma may not affect patient survival.
62  stomatal index
(19 times)
Botany
(6 times)
SD (11 times)
SL (3 times)
FA (2 times)
2001 Stomatal density and stomatal index as indicators of paleoatmospheric CO(2) concentration.
63  summary index
(19 times)
Neurology
(8 times)
PD (10 times)
HRQoL (9 times)
PDQ-39 (5 times)
1991 A summary index for the assessment of quality of life in angina pectoris.
64  sexual intercourse
(18 times)
Urology
(4 times)
ED (3 times)
EF (2 times)
PE (2 times)
1994 Effect of sexual practices on T cell subsets and delayed hypersensitivity in transsexuals and female sex workers.
65  Shenmai Injection
(18 times)
Complementary Therapies
(17 times)
CHF (2 times)
ET (2 times)
SOD (2 times)
1996 [Effect of shenmai injection on local defence mechanism in peritoneal dialysis rats].
66  surround inhibition
(18 times)
Neurology
(11 times)
ADM (9 times)
TMS (9 times)
FDI (6 times)
2004 Surround inhibition in human motor system.
67  silent ischemia
(17 times)
Cardiology
(7 times)
CAD (6 times)
ACE (1 time)
AECGs (1 time)
1988 Silent myocardial ischaemia and life threatening ventricular arrhythmias.
68  smoking initiation
(17 times)
Genetics, Medical
(5 times)
ND (5 times)
CPD (3 times)
SNPs (3 times)
1999 A population-based twin study in women of smoking initiation and nicotine dependence.
69  soybean isoflavones
(17 times)
Environmental Health
(3 times)
MDA (4 times)
3beta-HSD (1 time)
ADFI (1 time)
2001 [Inhibition effect of soybean isoflavones on the oxidative modification of low-density lipoprotein].
70  stimulation of primary somatosensory cortex
(17 times)
Neurology
(9 times)
fMRI (3 times)
AI (2 times)
SII (2 times)
1991 Neuronal activity in the primary somatosensory cortex in monkeys (Macaca mulatta) during active touch of textured surface gratings: responses to groove width, applied force, and velocity of motion.
71  stoichiometry of inhibition
(17 times)
Biochemistry
(14 times)
PAI-1 (3 times)
RCL (2 times)
tPA (2 times)
1993 Reaction of human chymase with reactive site variants of alpha 1-antichymotrypsin. Modulation of inhibitor versus substrate properties.
72  self-initiated
(16 times)
Neurology
(6 times)
ET (8 times)
PD (4 times)
RT (3 times)
2000 Movement cueing and motor execution in patients with dystonia: a kinematic study.
73  sham-intubated
(16 times)
Neurology
(6 times)
PD (12 times)
CPFE (7 times)
AE (5 times)
2007 Persistent impairment of hippocampal neurogenesis in young adult rats following early postnatal alcohol exposure.
74  short intervals
(16 times)
Radiology
(4 times)
LI (8 times)
AF (1 time)
AS (1 time)
1987 Modification of force-interval relations during early adaptation to pressure overload in dogs.
75  silent myocardial ischemia
(16 times)
Vascular Diseases
(4 times)
CAD (6 times)
LDL-C (4 times)
TG (3 times)
1988 Silent myocardial ischemia in asymptomatic survivors of unrecognized myocardial infarction and matched controls.
76  standard indications
(16 times)
Communicable Diseases
(4 times)
RSVH (5 times)
RSV (4 times)
EI (3 times)
2002 Defining hypnosis as a trance vs. cooperation: hypnotic inductions, suggestibility, and performance standards.
77  stratum intermedium
(16 times)
Embryology
(4 times)
SR (5 times)
OEE (3 times)
IEE (2 times)
1980 Ultrastructure of the ameloblast-stratum intermedium border during ameloblast differentiation.
78  shunt index
(15 times)
Gastroenterology
(7 times)
HPS (2 times)
AIH (1 time)
BCAA (1 time)
1987 A continuous monitoring technique for management of acute pulmonary failure.
79  stimulus intensity
(15 times)
Neurology
(11 times)
TMS (6 times)
MT (5 times)
SP (5 times)
1992 Silent period measurement revives as a valuable diagnostic tool with transcranial magnetic stimulation.
80  strain imaging
(15 times)
Cardiology
(8 times)
LV (10 times)
SR (4 times)
TDI (4 times)
2005 Assessment of left ventricular longitudinal regional myocardial systolic function by strain imaging echocardiography in patients with hypertrophic cardiomyopathy.
81  sustainable intensification
(15 times)
Environmental Health
(3 times)
AE (1 time)
BAU (1 time)
CA (1 time)
2014 Food security and sustainable intensification.
82  swelling index
(15 times)
Pharmacology
(5 times)
FTIR (3 times)
RSM (3 times)
SEM (3 times)
1998 Relationship between swelling, erosion and drug release in hydrophillic natural gum mini-matrix formulations.
83  Sagnac interferometer
(14 times)
Ophthalmology
(14 times)
BPS (2 times)
OPD (2 times)
BOCDA (1 time)
2012 Static hyperspectral imaging polarimeter for full linear Stokes parameters.
84  sarcopenia index
(14 times)
Gastroenterology
(4 times)
BMI (3 times)
CBMM (2 times)
KNHANES (2 times)
2012 Pulse wave velocity is associated with muscle mass decline: Health ABC study.
85  secondary ion
(14 times)
Chemistry Techniques, Analytical
(6 times)
ToF-SIMS (3 times)
SIMS (2 times)
TOF (2 times)
1985 Enhanced detection of drugs in complex mixtures by derivatization/secondary ion mass spectrometry.
86  simulation interval
(14 times)
Science
(3 times)
MSM (3 times)
TB (3 times)
PrEP (2 times)
1985 Block of sodium currents by the calcium antagonist D600 in human heart cell segments.
87  spectral imaging
(14 times)
Diagnostic Imaging
(9 times)
EELS (5 times)
STEM (4 times)
EDX (3 times)
2004 Application of spectral imaging microscopy in cytomics and fluorescence resonance energy transfer (FRET) analysis.
88  splenic infarction
(14 times)
Medicine
(5 times)
CT (3 times)
MRI (2 times)
6MWT (1 time)
1994 [Brain MRI findings in patients with initial cerebral thrombosis and the relationship between incidental findings, aging and dementia].
89  stress index
(14 times)
Critical Care
(3 times)
HRV (5 times)
CT (3 times)
PEEP (3 times)
2005 Management of severe subarachnoid hemorrhage; significance of assessment of both neurological and systemic insults at acute stage.
90  structure index
(14 times)
Environmental Health
(3 times)
EI (4 times)
MI (4 times)
AS (2 times)
2004 COX-2+ myofibroblasts may play a key role in marked stromal fibrosis in strictured colorectal carcinomas.
91  synchronization index
(14 times)
Neurology
(6 times)
AEDs (1 time)
AM (1 time)
aMCI (1 time)
1995 Processing of modulation frequency in the dorsal cochlear nucleus of the guinea pig: amplitude modulated tones.
92  Systeme International d'Unites
(14 times)
Medicine
(4 times)
AMH (1 time)
BSA (1 time)
CFU (1 time)
1976 Experience with SI units in biochemistry.
93  sacroiliac joint
(12 times)
Orthopedics
(3 times)
AP (2 times)
ASIS (2 times)
CT (2 times)
1992 Quantitative radio-isotope scanning of the sacroiliac joints in ankylosing spondylitis.
94  Santa Ines
(12 times)
Veterinary Medicine
(8 times)
GIN (3 times)
IF (2 times)
IgG (2 times)
2006 Annual pattern of plasma melatonin and progesterone concentrations in hair and wool ewe lambs kept under natural photoperiod at lower latitudes in the southern hemisphere.
95  satisfaction index
(12 times)
General Surgery
(5 times)
IMP (2 times)
ASC (1 time)
CI (1 time)
2004 Nd:YAG laser combined with IPL treatment improves clinical results in non-ablative photorejuvenation.
96  spinal immobilization
(12 times)
Reproductive Medicine
(5 times)
SA (3 times)
HSP (2 times)
SIT (2 times)
1987 [Heterogeneity of sperm immobilizing antibodies in sera of sterile women].
97  suppression index
(12 times)
Allergy and Immunology
(5 times)
Con A (3 times)
CGN (2 times)
PBL (2 times)
1981 Concanavalin A-induced suppressor cell activity in lipoid nephrosis.
98  syringe irrigation
(12 times)
Dentistry
(7 times)
PUI (6 times)
LAI (5 times)
CUI (2 times)
2016 Efficacy of low concentrations of sodium hypochlorite and low-powered Er,Cr:YSGG laser activated irrigation against an Enterococcus faecalis biofilm.
99  scyllo-inositol
(11 times)
Biotechnology
(4 times)
mI (8 times)
AD (2 times)
AVs (1 time)
2010 Identification of two scyllo-inositol dehydrogenases in Bacillus subtilis.
100  Simmental
(11 times)
Veterinary Medicine
(7 times)
BS (6 times)
HF (4 times)
POST (3 times)
1990 Body composition and tissue distribution from birth to 14 months for three biological types of beef heifers.