Acronym Definition
2D Two Dimensional
3D Three Dimensional
3xTg AD Strain of Laboratory Mice
A Acceptable
ABCAT Automated Behavior and Cohesion Assessment Tools
ABF Anthropometry & Biomechanics Facility
aBMD Areal Bone Mineral Density
ACAWS Advanced Caution And Warning System
ACG Alternative Compression Garments
ACLS Aerobics Center Longitudial Study
AD Alzheimer's Disease
ADAPT Accelerometer Data Analysis & Presentation & Adaptive Data
ADCO Attitude Determination and Control Officer
aDLS Accelerometric Daily Load Sensor
AEH Advanced Environmental Health
AES Advanced Exploration Systems
AFB Air Force Base
AFT Advanced Food Technology
AGS Anti-Gravity Suit
AH Acoustic Hemostsis
AICS Advanced Integrated Clinical Systems
AIDT Automation Interface Design
AIDTD Automation Interface Design Tools Development
AIM Abdominal Injury Module
ALARA As Low as Reasonably Achievable
amu Atomic Mass Unit
ANAM Automated Neuropsychological Assessment Metrics
ANSI American National Standards Institute
APAP Acetaminophen
apoE Apolipoprotein E
APRT Autosomal Genetic Locus
ARC Ames Research Center
ARED Advanced Resistive Exercise Device
ARES Astromaterials Research and Exploration Science
ARGOS Active Response Gravity Off-load System
ARRBOD Acute Radiation Risk Organ Doses
ARS Acute Radiation Sickness
ARS Acute Radiation Syndromes
ART Aptitude for Robotics Test
ASAP As Soon As Possible
ASCR Astronaut Strength, Conditioning, and Rehabilitation
ATD Anthroporphic Test Dummy
ATM Ataxia Telangiectasia Mutated
ATP Acceptance Test Procedure
AU Astronomical Unit
AWO Anarctic Winter-Over
B-Med Behavioral Medicine
B-MEDIC Behavioral Monitoring and Evaluation for the Delivery of Interactive Cognitive Behavioral Therapy
BALF Bronchioalveolar Lavage Fluids
BARD Bardoxylone methyl
BCM Biological Countermeasure
BDC Baseline Data Collection
BDI Beck Depression Inventory
BEO Beyond low earth orbit
BER Base Excision Repair
BESS Biomedical Experiment Scientific Satellite
BFO Blood Forming Organs
BHP Behavioral Health and Performance
BM Bone Marrow
BMD Bone Mineral Density
BMI Body Mass Index
BMR Basal Metabolic Rate
BNL Brookhaven National Laboratory
BOPP bi-axially oriented polypropylene
BORIS Basic Operational Robotics Instructional Systems
Br Bromine
C Celsius
C Controlled
C&W Caution and Warning
C57BL Common Inbred Strain of Laboratory Mice
Ca Calcium
CAPRICE Cosmic Antiparticle Ring-Imaging Cherenkov Experiment
CAPTEM Curator and Planning Team for Extraterrestrial Materials
CARR Center for Acute Radiation Research
CAT Customer Acceptance Test
CAT Cognitive Assessment Tool
CB Astronaut Branch in the CA Directorate
CB Control Board
CBT Computer-Based Training
CCDev Commercial Crew Development Office
CCF Consolidated Communications Facilities
CDDF Center Director's Discretionary Fund
CDR Critical Design Review
CDR Commander
CEV Crew Exploration Vehicle
CEVIS Cycle Ergometer with Vibration Isolation and Stabilization
CEVIS Crew Exercise Vibration Isolation System
CFD Combat Feeding Directorate
CG Center of Gravity
CG-4 Central Gilia-4
CHD Coronary Heart Disease
CHeCS Crew Health Care Systems
CHOICE Confinement and Hypobaric Hypoxia on Immunity in the Antarctic Concordia Environment
CIREN Crash Injury Research Engineering Network
Cl Chlorine
CliFF Clinical Findings Form
cm Centimeter
CM Command Module
CM Countermeasure
CMO Crew Medical Officers
CMT Critical Mission Task
CNS Central Nervous System
CO2 Carbon Dioxide
COTS Commercial Off-the-Shelf
CPHS Committee for the Protection of Human Subjects
CR Change Request
CRN8 APP Tg Strain of Laboratory Mice
CSF Cerebrospinal Fluid
CSM Center for Space Medicine
CT Computed Tomography
CTSD Crew and Thermal Systems Division
CV Cardiovascular
CWS Cotton Wool Spots
Cx Constellation
CxP Constellation Program
CxPO Constellation Program Office
D Desirable
D&C Displays and Controls
D-RATS Desert Research and Technology Studies
DBA2 F1 Strain of Laboratory Mice
DBLS Daily Bone Load Stimulus
DC District of Columbia
DCS Decompression Sickness
DCS Data Collection System
DDREF Dose and Dose-Rate Reduction Factor
DDT&E Design, Development, Test, and Evaluation
DHEA Dehydroepiandrosterone
DHEA-S Dehydroepiandrosterone Sulfate
DIPT Discipline Integrated Product Team
DLMO Dim-Light Melatonin Onset
DLS Dynamic Light Scattering
DLW Doubly Labeled Water
DMA Data Mining Activity
DNA Deoxyribonucleic Acid
DNMT1 DNA Methyltransferase 1
DOD Department of Defense
DOE Department of Energy
DOF Degrees of Freedom
DRATS Desert Research and Technology Studies
DRM Design Reference Mission
DRP Directed Research Project
DSB Defense Science Board
DSM-IV-TR Diagnostic and Statistical Manual, Fourth Edition, Text Revision
DSNE Design Specification for Natural Environments
DSO Detailed Supplementary Objective
DT Discipline Team
DTI Diffusion Tensor Imaging
DTO Detailed Test Objective
DU Dual Use
DVA Dynamic Visual Acuity
DXA Dual Energy X-Ray Absorptiometry
EAA Equivalent Air Altitude
EBIS Electron Beam Injector Source
EBV Epstein-Barr Virus
EC Crew & Thermal Systems Division
ECG Electrocardiogram
ECHO Earth Observing System (EOS) Clearinghouse
ECL Engineering Configuration List
ECLS Environmental Control and Life Support
ECLSS Environmental Control and Life Support System
ECP Export Control Program
EEG Electroencephalogram
ELISA Enzyme-Linked Immunosorbent Assay
ELS Exploration Life Support
EMR Electronic Medical Record
EMT Emergency Medical Technician
EMU Extravehicular Mobility Unit
EOS Earth Observing System
EPC Endothelial Progenitor Cells
EPL Environmental Physiology Lab
EPSP EVA Physiology and Systems Performance
EPV Electronic Procedures Viewer
ESA European Space Agency
ESAS Exploration System Architecture Study
ESM Equivalent System Mass
ESMD Exploration Systems Mission Directorate
ESPO EVA Systems Project Office
EVA Extra-Vehicular Activity
ExMC Exploration Medical Capability
ExPC Exercise Physiology and Countermeasures
eZLS Enhanced Zero Gravity Locomotion Simulator
F Fluorine
FAA Federal Aviation Administration
FAP Flight Analogs Project
FAST Function Allocation Simulation Tool
fcMRI Functional Connectivity Magnetic Resonance Imaging (MRI)
FD Flight Day
FDA Food and Drug Administration
Fe Iron
FE Finite Element
FEM Finite Element Model
FFD Fitness for Duty
FFQ Food Frequency Questionnaire
fMRI Functional Magnetic Resonance Imaging
FOD Flight Operations Directorate
FOR Factor of Risk
FQQ Food Quality Questionnaire
FSA Federal Space Agency
FTT Functional Task Test
FWE Free Water Events
FY Fiscal Year
g Gravity
GCR Galactic Cosmic Rays
GCRC General Clinical Research Center
GenEpi Genomic and Epigenetic
GeV Gigaelectron Volt
GFP Green Fluorescent Protein
GI Gastrointestinal
GL Ground Laboratory
GLP Good Laboratory Practice
gm Gram
GMP Good Manufacturing Processes
Gprc5a A Gene That Encodes a Member of the Type 3 G Protein-Coupling Receptor Family
GRC Glenn Research Center
GRF Ground Reaction Force
GRT Generic Robotic Test
GUI Graphic User Interface
GVS Galvanic Vestibular Stimulation
Gy Gray (unit)
H-FAST Human Factors Analysis Support Tool
H/W Hardware
HAI Human Automation Interaction
HARI Human and Automation/Robotic Integration
HCI Human-Computer Interface
HEFD Habitability and Environmental Factors Division
HEFT Human Exploration Factors Team
HEOMD Human Exploration and Operations Mission Directorate
HERA Human Exploration Research Analog
HF Human Factors
HFBP Human Factors and Behavioral Performance
HFHS Henry Ford Health System
HHC Human Health Countermeasures
HHPD Human Health and Performance Directorate
HIASSI HZE-induced Attentional Set Shifting Impairments
HIDH Human Integration Design Handbook
HIM Head Injury Module
HISMI HZE-induced Spatial Memory Impairments
HITL Human-In-The-Loop
HLR Human Lunar Return
HMP Haughton Mars Project
HMTA Health and Medical Technical Authority
HNP Herniated Nucleus Pulposus
HOM Human Oculometric Model
HOP Human Oculomotor Performance
HQ Head Quarters
HQPDM Head Quarter Pre-Disaster Mitigation
HR Homologous Recomination
HR Heart Rate
HRF Human Research Facility
HRI High Resolution Imager
HRP Human Research Program
HRPCB Human Research Program Control Board
HRR Human Research Roadmap
HSI Human System Integration
HSIR Human Systems Integration Requirements
HSRB Human Systems Risk Board
HSRB Human Subjects Review Board
HSRF Human Systems Risk Forum
HSRT Human Systems Research and Technology
HST Health Sciences and Technology
hTERT Telomerase
HU Hydroxyurea
HU Hind Limb Unloading
HUD Heads-Up Display
HUT Head-Up-Tilt
hz Hertz
HZE High Charge and Energy
HZETRN High Charge and Energy Transport
I Important
IA Information Architecture
IBMP Institute for Biomedical Problems
ICE Isolated, Confined and Extreme
ICP Intracranial Pressure
ICP Intra-mural Competitive Proposal
ICV Integrated Cardiovasuclar
ID Identify
IFM Individualized Fatigue Meter
IG Inspector General
IGF Insulin-like Growth Factor
IHT Intracranial Hypertension
IIH Idiopathic Intracranial Hypertension
IM Intramuscular
IMM Integrated Medical Model
IO Intraosseous
IOM Institute of Medicine
IOP Intraocular Pressure
IP Information Processing
IPI Intrapharyngeal Instillation
IR Ionizing Radiatioin
IRL Indy Racing League
IRP Integrated Research Plan
ISO International Organization for Standardization
ISS International Space Station
ISSMP International Space Station Medical Projects
ISSP International Space Station Program
IST Integrated Systems Test
IT Information Technology
IT Intratracheal
ITA Internal Task Agreement
ITI Intratracheal Instillation
IU International Unit
IU/d Internation Unit per Day
IV Intravenous
IV&V Independent Verification & Validation
IVA Intravehicular Activity
IVD Intervertrebral Disk
IVGEN Intravenous Fluid Generation
JAXA Japan Aerospace Exploration Agency
JECFI Joint Expert Committee on Food Irradiation
JIT Just-in-Time
JITT Just-In-Time-Training
JSC Johnson Space Center
K Potassium
keV Kiloelectron Volt
kg Kilogram
kGy Kilogray
L/D Lift-to-Drag Ratio
LABR Lunar Analog Bed Rest
LADTAG Lunar Airborne Dust Toxicity Advisory Group
LADTAG Lunar Airborne Dust Toxicity Assessment Group
LAE Launch/Abort/Entry
LaRC Langley Research Center
LASOIS Lunar Astronaut Spatial Orientation and Information System
LAT Lunar Architecture Team
LCVG Liquid Cooling and Ventilation Garment
LD Low-Dose
LD Long Duration
LDHS Lunar Dust Health Standard
LDLM Long-Duration Lunar Missions
LDM Long Duration Mission
LDSE Long Duration Space Exploration
LDTRP Lunar Dust Toxicity Research Program
LED Light Emitting Diode
LEO Low Earth Orbit
LET Linear Energy Transfer
LLU Loma Linda University
LOC Loss Of Crew
LOH Loss of heterozygosity
LOM Loss Of Mission
LPM Litre Per Minute
LRO Lunar Robotic Orbiter
LSAH Lifetime Surveillance of Astronaut Health
LSAM Lunar Surface Access Module
LSDA Life Science Data Archive
LSH Life Support and Habitation
LSOS Limited Stations Operations Support
LSOS Limited Services for Operations Support
LTM Lightweight Trauma Module
M-MED Multi-Mode Exercise Device
MADYMO Mathematical Dynamic Models
MARES Muscle Atrophy Research and Exercise System
MAT Medical Assessment Test
MAT Mars Architecture Team
MATLAB Computation and modeling computer program
MC Mitotic Catastrophe
MC Monte Carlo
MCC Mission Control Center
MDRV Microbial Drug Resistance Virulence
MeV Megaelectron Volt
meV Millielectron Volt
Mg Magnesium
MIDAS Man-machine Integration Design and Analysis System
MIPR Military Interdepartmental Purchase Request
miRNA micro ribonucleic acid (RNA) molecules
MIT Massachusetts Institute of Technology
MLT Muscle, Ligament, and Tendon
mm Milimeter
mmHg Millimeter of Mercury
MMIS Mission Medical Information System
MOD Mission Operations Directorate
MPCV Multipurpose Crew Vehicle
MR Mental Rotation
MRI Magnetic Resonance Imaging
MRID Medical Requirements Integration Document
MSK Musculoskeletal
MSL Materials Science Laboratory
MSL-RAD Mars Science Laboratory Radiation Assessment Detector
MSP Micro-fabricated Sweat Patch
MSTT Medication/Symptom Tracking Tool
mSv Milli-Sievert
N Number of subjects
N/A Not Applicable
NAS National Academy of Sciences
NASA National Aeronautics and Space Administration
NASCA NASA Study of Cataracts in Astronauts
NASCAR National Association for Stock Car Racing
NBL Neutral Buoyancy Laboratory
NBL Nutritional Biochemistry Lab
NCM Nutritional Countermeasure
NCRP National Council on Radiation Protection and Measurements
Ne Neon
NEA Near Earth Asteroid
NEEMO NASA Extreme Environment Mission Operations
NESC NASA Engineering Safety Center
NeuroB Neurochemical and Behavioral Response
NHEJ Nonhomologous End Joining
NHTSA National Highway Traffic Safety Administration
NIH National Institute of Health
NIN Near-Infrared Neuroimaging
NIOSH National Institute for Occupational Safety and Health
NIR Near-Infrared
nm Nanometer
NO Nitric Oxide
NOS Nitric Oxide Synthase
NOx Mono-Nitrogen Oxides NO and NO2
NPD NASA Policy Directive
NRA NASA Research Announcement
NS Nervous System
NSBRI National Space Biomedical Research Institute
NSC Neural Stem Cell
NSCOR NASA Specialized Center of Research
NSRL National Space Radiation Laboratory
NTE Non-Targeted Effects
NUCFRG2 A Semiempirical Nuclear Fragmentation Mode
O2 Oxygen
OCHMO Office of the Chief Health and Medical Officer
OCR Optical Character Recognition
OCR Optical Computer Recognition
OI Orthostatic Intolerance
OOR Otolith-Ocular Responses
OPC Oligodendrocyte Progenitor Cells
OPG Osteoprotegerin
Ops Operations
OpsCon Operations Concept
ORID Occupational Risk Surveillance for Bone
p53 Tumor Suppressor Protein
PANAS Positive and Negative Affect Schedule
PCA Program Commitment Agreement
PCAI Power, Communications, Avionics, and Informatics
PCR Polymerase Chain Reaction
PD Pharmacodynamics
PDMS Polydimethylsiloxane
PDR Preliminary Design Review
PEEK Polyetheretherketone
PEL Permissible Exposure Limits
PERCLOS Percentage of Eye Closure
PET Positron Emission Tomography
PHITS Particle and Heavy-Ion Transport code System
PHS Periodic Health Status
PI Program Investigator
PI Performance Indicator
PI Principal Investigator
PK Pharmacokinetics
PM Particulate Matter
PMZ Promethazine
POGO Partial Gravity Simulator
POP Program Operating Plan
POT1 Protection Of Telomeres Protein 1
PPBE Planning, Programming, Budgeting, and Execution
PPFS Portable Pulmonary Function System
pQCT Peripheral Quantitative Computed Tomography
PRA Probabalistic Risk Assessment
PRD Program Requirements Document
PRD Project Risk Database
PSA Pressure Swing Adsorption
psi Pounds per Square Inch
PT Perspective Taking
PUB Published
PVT Psychomotor Vigilance Task
Q(LET) Linear-Energy Transfer Dependent Radiation Quality Factor
Qc Cardiac Output
QCT Quantitative Computed Tomography
QMSFRG Quantum Multiple Scattering Model of Heavy Ion Fragmentation
QTc QT Interval Corrected For Heart Rate
R Return
R&D Research and Development
R&TD Research and Technology Development
RAD Radiation Absorbed Dose
Rad54 Protein
RANKL Receptor Activator for Nuclear Factor kB Ligand
RBC Red Blood Cell
RBE Relative Biological Effectiveness
RCAP Research and Clinical Advisory Panel
RCS Russian Chamber Study
REBA Rapid Entire Body Assessment
RED Resistive Exercise Device
REID Risk of Exposure Induced Death
REV Revision
RFP Request for Proposal
RHO Radiation Health Officer
RID Review Item Discrepancy
RMAT Risk Management Analysis Tool
RMS Risk Management System
RMS Remote Manipulator System
RNA Ribonucleic Acid
ROI Region Of Interest
ROI Rapid Operational Investigation
ROS Reactive Oxygen Species
ROTTR Rotation Otolith Tilt-Translation Reinterpretation
RPE Ratings of Perceived Exertion
RR Research Requirments
RULA Rapid Upper Limb Assessment
SA Sensorimotor Adaptibility
SA Situational Awareness
SAID Spaceflight Associated Immune Dysregualtion
SAR System Acceptance Review
SARA Sensorimotor Assessment and Rehabilitaiton Apparatus
SBIR Small Business Innovative Research
SCAD Scanning Confocal Ultrsound Diagnostic
sCLU Seromuscular Colocystoplasty Lined with Urothelium
SD Space Medicine Division
SD Spatial Disorientation
SDAT Spatial Disorientation Analysis Tool
SDBI Short Duration Bioastronautics Investigation
sDTO Supplemental Detailed Test Objective
SEA Statistical Energy Analysis
SEV Space Exploration Vehicle
SFHSS Space Flight Human Systems Standards
SFRM Space Flight Resource Management
SFSL Space Food Systems Laboratory
SHFE Space Human Factors Engineering
SHFH Space Human Factors and Habitability
Si Silicon
SIG Systems Integration Group
SIIH Spaceflight-Induced Intracranial Hypertension
siRNA Small Interfering RNA
SM Space Medicine
SM Sensorimotor
SMD Space Mission Directorate
SME Subject Matter Experts
SMECL Space Medicine Exploration Medical Condition List
SMEMCL the Space Medicine Exploration Medical Condition List
SMO Science Management Office
SMO Supplemental Medical Objective
SMS Space Motion Sickness
SNP Single Nucleotide Polymorphisms
SOA Supportability, Operability, Affordability
SOAS Spatial Orientation Aiding System
SOD Superoxide Dismutase
SOIRT Space Operations Issue Reporting Tool
SPDM Special Purpose Dexterous Manipulator
SPE Solar Particle Event
SPIFe Science Planning Interface to Engineering
SPIFE Scheduling and Planning Interface for Exploration
SPR Small Pressurized Rover
SPRINT Integrated Resistance and Aerobic Training
SPS South Pole Station
SQQ Sleep Quality Questionnaire
SR Stochastic Resonance
SR Space Radiation Element
SR MTECH Space Radiation Measurement Technologies
SRP Safety Review Panel
SRP Standing Review Panel
SRR Systems Requirements Review
SSB Single Strand Breaks
SSLM Solid State Lighting Modules
SSMD Solid-State Microdosimeters
SSRI Selective Serotonin Reuptake Inhibitor
SSRMS Space Station Remote Manipulator System
ST Self-Test
STS Shuttle Transportation System
STTR Small Business Technology Transfer
SV Spatial Visualization
SVV Subjective Visual Vertical
SWAB Surface, Water, and Air Biocharacterization
SWIS Sterile Water for Injection
sZLS Standalone Zero-Gravity Locomotion Simulator
T2 Second ISS Treadmill
TA Tumor Ablation
TAS2 Team Autonomous Self-Development and Sustainment
TBD To Be Determined
TBDM Tissue Bubble Dynamics Model
TBR To Be Resolved
tDVA Translational DVA
TEI Task Efficiency Index
TEPC Tissue Equivalent Proportional Counter
TGF-Beta Transforming Growth Factor Beta
THUMS Total Human Model for Safety
Ti Titanium
TIN2 TRF1-Interacting Protein 2
TM Telemedicine
TMP Transition to Medical Practice
TRF1 Telomeric Repeat-Binding Factor 1
TRF2 Telomeric Repeat-Binding Factor 2
TRL Technical Readiness Level
TTS Tilt-Translation Sled
TVIS Treadmill Vibration Isolation System
TVIS Treadmill with Vibration Isolation and Stabilization
U Unacceptable
U.S. United States
UAS Unmanned Aerial Systems
UMN University of Minnesota
USAF United States Air Force
UT University of Texas
UTMB University of Texas, Medical Branch
UV Ultraviolet
V&V Verification and Validation
VAS Visual Analog Scale
VCF Vertebral Compression Fractures
VEMP Vestibular Evoked Myogenic Potentials
VIIP Visual Impariment Intracranial Pressure
VitD Vitamin D
VO2max Maximal Oxygen Consumption
VO2pk Peak Oxygen Consumption
VoIP Voice Over Internet Protocol (IP)
VR Virtual Realtiy
VSE Vision for Space Exploration
VZV Varicella-Zoster Virus
WBC White Blood Cell
WEI Work Efficiency Indices
WinSCAT Space Flight Cognitive Assessment Tool for Windows
WRN Werner Syndrome Protein
XO xanthine oxidase
Zag Ambiguous Tilt and Translation Motion Cues After Space Flight
ZAG Zn-a2-glycoprotein
ZLS Zero Gravity Locomotion Simulator