Public registry
Nodes
Browse canonical concepts by label, domain, node type, prefix and encoded class.
| Concept | Node type | Base domain | Identifier |
|---|---|---|---|
| Negative Results Subject matter related to research studies in which the data do not demonstrate any clear evidence of effect, especially if an effect was expected. | Research method | Research Methodology | AMW:TECH:050228 |
| Neoplasm Transplantation Experimental transplantation of neoplasms in laboratory animals for research purposes. | Molecular biology method | Research Methodology | AMW:TECH:050658 |
| Neoplasms, Experimental Experimentally induced new abnormal growth of TISSUES in animals to provide models for studying human neoplasms. | Research method | Research Methodology | AMW:TECH:050613 |
| Network Meta-Analysis as Topic Works about meta-analyses of randomized trials in which estimates of comparative treatment effects are visualized and interpreted from a network of i… | Statistical method | Research Methodology | AMW:TECH:050320 |
| Neuritis, Autoimmune, Experimental An experimental animal model for the demyelinating disease of GUILLAINE-BARRE SYNDROME. In the most frequently used protocol, animals are injected wi… | Research method | Research Methodology | AMW:TECH:050622 |
| Neurolinguistic Programming A set of models of how communication impacts and is impacted by subjective experience. Techniques are generated from these models by sequencing of va… | Research method | Research Methodology | AMW:TECH:050637 |
| Neutron Diffraction The scattering of NEUTRONS by matter, especially crystals, with accompanying variation in intensity due to interference effects. It is useful in CRYS… | Diffraction method | Research Methodology | AMW:TECH:050070 |
| No-Observed-Adverse-Effect Level The highest dosage administered that does not produce toxic effects. | Exposure assessment method | Research Methodology | AMW:TECH:050732 |
| Non-Randomized Controlled Trials as Topic Works about a study where participants are assigned to a treatment, procedure, or intervention by methods that are not random. Non-randomized clinica… | Research method | Research Methodology | AMW:TECH:050340 |
| Nonlinear Dynamics The study of systems which respond disproportionately (nonlinearly) to initial conditions or perturbing stimuli. Nonlinear systems may exhibit chaos … | Statistical method | Research Methodology | AMW:TECH:050653 |
| Nontherapeutic Human Experimentation Human experimentation that is not intended to benefit the subjects on whom it is performed. Phase I drug studies (CLINICAL TRIALS, PHASE I AS TOPIC) … | Research method | Research Methodology | AMW:TECH:050559 |
| Normal Distribution Continuous frequency distribution of infinite range. Its properties are as follows: 1, continuous, symmetrical distribution with both tails extending… | Statistical method | Research Methodology | AMW:TECH:050438 |
| Nuclear Magnetic Resonance, Biomolecular NMR spectroscopy on small- to medium-size biological macromolecules. This is often used for structural investigation of proteins and nucleic acids, a… | Molecular biology method | Research Methodology | AMW:TECH:050153 |
| Nuclear Transfer Techniques Methods of implanting a CELL NUCLEUS from a donor cell into an enucleated acceptor cell. | Research method | Research Methodology | AMW:TECH:050183 |
| Nucleic Acid Amplification Techniques Laboratory techniques that involve the in-vitro synthesis of many copies of DNA or RNA from one original template. | Molecular biology method | Research Methodology | AMW:TECH:050529 |
| Nucleic Acid Denaturation Disruption of the secondary structure of nucleic acids by heat, extreme pH or chemical treatment. Double strand DNA is melted by dissociation of the … | Molecular biology method | Research Methodology | AMW:TECH:050537 |
| Nucleic Acid Hybridization Widely used technique which exploits the ability of complementary sequences in single-stranded DNAs or RNAs to pair with each other to form a double … | Molecular biology method | Research Methodology | AMW:TECH:050538 |
| Nucleotide Mapping Two-dimensional separation and analysis of nucleotides. | Molecular matrix method | Research Methodology | AMW:TECH:050060 |
| Nutrition Surveys A systematic collection of factual data pertaining to the nutritional status of a human population within a given geographic area. Data from these su… | Research method | Research Methodology | AMW:TECH:050283 |
| Observation The act of regarding attentively and studying facts and occurrences, gathering data through analyzing, measuring, and drawing conclusions, with the p… | Research method | Research Methodology | AMW:TECH:050597 |
| Observational Studies as Topic Works about clinical studies in which participants may receive diagnostic, therapeutic, or other types of interventions, but the investigator does no… | Research method | Research Methodology | AMW:TECH:050348 |
| Observational Studies, Veterinary as Topic Works about clinical studies in which animal subjects may receive diagnostic, therapeutic, or other types of interventions and where the investigator… | Research method | Research Methodology | AMW:TECH:050349 |
| Odds Ratio The ratio of two odds. The exposure-odds ratio for case control data is the ratio of the odds in favor of exposure among cases to the odds in favor o… | Statistical method | Research Methodology | AMW:TECH:050412 |
| Oligonucleotide Array Sequence Analysis Hybridization of a nucleic acid sample to a very large set of OLIGONUCLEOTIDE PROBES, which have been attached individually in columns and rows to a … | Molecular biology method | Research Methodology | AMW:TECH:050541 |
| Optical Restriction Mapping A technique to generate restriction maps from single large DNA molecules by spreading the DNA onto a glass surface, digesting with DNA RESTRICTION EN… | Molecular biology method | Research Methodology | AMW:TECH:050485 |
| Optical Tweezers A technique that uses LASERS to trap, image, and manipulate small objects (biomolecules, supramolecular assembles, DENDRIMERS) in three dimensional s… | Molecular biology method | Research Methodology | AMW:TECH:050659 |
| Optogenetics The combination of genetic and optical methods in controlling specific events with temporal precision in targeted cells of a functioning intact biolo… | Molecular biology method | Research Methodology | AMW:TECH:050542 |
| Organ Culture Techniques A technique for maintenance or growth of animal organs in vitro. It refers to three-dimensional cultures of undisaggregated tissue retaining some or … | Cell biology method | Research Methodology | AMW:TECH:050581 |
| Parabiosis The experimental joining of two individuals for the purpose of studying the effects of one on the other. | Experimental model | Research Methodology | AMW:TECH:050662 |
| Particle Swarm Optimization A heuristic computational algorithm designed to find optimal solutions in a random search space. Particle swarm optimization measures swarm intellige… | Algorithm | Research Methodology | AMW:TECH:050759 |