708 results on '"Nitrogen Isotopes"'
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2. STUDIES ON THE INCORPORATION AND RELEASE OF N15 BY TISSUE PROTEINS OF RATS FED N15-GLYCINE: I. THE PROTEIN METABOLIC ACTIVITY OF SALIVARY GLANDS.
3. STUDIES ON THE INCORPORATION AND RELEASE OF N15 BY TISSUE PROTEINS OF RATS FED N15"-GLYCINE: II. THE ACTIVITIES OF MUSCLE, ORAL MUCOSA, AND INCISOR PULP PROTEINS.
4. Specific activity of the NPR primary coolant loop
5. ISOTOPIC EQUILIBRIA OF NITROSYL CHLORIDE
6. THE ABSOLUTE ABUNDANCE OF THE NITROGEN ISOTOPES IN THE ATMOSPHERE AND COMPRESSED GAS FROM VARIOUS SOURCES
7. A LABORATORY METHOD FOR SEPARATING NITROGEN ISOTOPES BY ION-EXCHANGE
8. STABLE ISOTOPES RESEARCH AND PRODUCTION DIVISION SEMIANNUAL PROGRESS REPORT FOR PERIOD ENDING NOVEMBR 20, 1955
9. Diffusion effects in batch reactors
10. Process design criteria for a plant producing nitrogen-15
11. Energy levels of light nuclei, May 1962
12. Determination of ammonium N and nitrate N in acid permanganate solution used to absorb ammonia, nitric oxide, and nitrogen dioxide evolved from soils
13. Mechanism and isotope effect in ammonia synthesis over molybdenum nitride
14. Simultaneous influx and efflux of nitrate during uptake by perennial ryegrass
15. Distribution of Isotopic Nitrogen in Nitrogen Gas During Denitrification
16. Mass Spectra and Metastable Transitions in Isotopic Nitrous Oxides
17. FUNDAMENTAL STUDIES ON THE ION EXCHANGE SEPARATION OF ISOTOPES. III. THE SEPARATION FACTOR OF THE ION-EXCHANGE PROCESS INVOLVING NITROGEN ISOTOPES IN THE SYSTEM OF NH$sub 3$-H$sub 2$O-ACETONE
18. SEPARATION OF NITROGEN AND OXYGEN ISOTOPES BY EXCHANGE OF NITRIC OXIDE WITH NON-AQUEOUS SOLUTIONS OF NITRIC OXIDE COMPLEXES
19. THE SEPARATION OF NITROGEN AND OXYGEN ISOTOPES BY ADSORPTION ON SYNTHETIC ZEOLITES.
20. COMMENT ON THE FRACTIONATION OF NITROGEN ISOTOPES BETWEEN NO$sub 2$- AND NO$sub 3$- AND BETWEEN NO AND NO$sub 2$-.
21. Shell-model calculations for A = 6-14 nuclei with a realistic interaction
22. PARITY MIXING IN DEFORMED HARTREE--FOCK CALCULATIONS.
23. Isotopic Fractionation of Nitrogen in the Nitrogen Oxide-Nitrate Exchange System
24. NATURAL VARIATIONS IN THE RELATIVE ABUNDANCES OF THE NITROGEN ISOTOPES
25. SEPARATION OF STABLE NITROGEN ISOTOPES BY ION EXCHANGE CHROMATOGRAPHY
26. NATURAL VARIATIONS IN THE NITROGEN ISOTOPE ABUNDANCE RATIO IN IGNEOUS ROCKS
27. COMMON SENSE APPROACH TO THE PROBLEM OF GENETIC HAZARD DUE TO DIAGNOSTIC RADIOLOGY
28. Results of Low Temperature Research. XXXVIII. The Separation Factor of Nitrogen Isotopes in the NO/CH4 System
29. PRODUCTION OF LOW-ENERGY (0.1 TO 10-MeV) POSITRONS IN THE COSMIC RADIATION.
30. AMPULE METHOD OF TRANSFORMING HYDROCARBONS INTO CO$sub 2$ TO BE USED FOR MASS-SPECTROMETRIC ISOTOPIC ANALYSIS OF HYDROCARBONS IN THE NATURAL RANGE.
31. THE INFLUENCE OF HYDROGEN, OXYGEN, AND SULFUR ON NITROGEN ISOTOPE EXCHANGE ON IRON.
32. STUDY ON THE ISOTOPIC COMPOSITION OF LOW-ENERGY BORON, CARBON, NITROGEN, AND OXYGEN COSMIC-RAY PARTICLES.
33. ON THE ISOTOPIC COMPOSITION OF THE AMMONIA AND THE NITRATE ION IN RAIN
34. CATALYSIS OF THE NITROGEN ISOTOPE EQUILIBRATION REACTION BY RHENIUM.
35. ISOTOPIC CHEMICAL REACTION USED IN SEPARATION OF $sup 15$N.
36. NATURAL ISOTOPES. PART IV. SEPARATION BY ELECTROLYSIS
37. A REPLY TO THE PRECEDING NOTE BY E. ERIKSSON
38. ISOTOPE EFFECTS AMONG THE OXIDES OF NITROGEN IN THE GASEOUS AND LIQUID PHASES (Thesis)
39. ISOTOPE ANALYSIS OF NITROGEN BY EMISSION SPECTROMETRY.
40. NITROGEN ISOTOPE EFFECTS IN THE REDUCTION OF NITRATE, NITRITE, AND HYDROXYLAMINE TO AMMONIA. II. THE MgO AND CuSO$sub 4$ SYSTEMS.
41. EFFECT OF THE COMPOSITION OF THE GASEOUS PHASE ON THE ISOTOPIC SEPARATION OF $sup 15$N BY CHEMICAL EXCHANGE BETWEEN NITRIC SOLUTIONS AND NITROUS VAPORS
42. PHYSICAL PROPERTIES OF ISOTOPIC FORMS OF AZEOTROPIC SYSTEMS FORMED FROM ACETIC ACID AND SOME TERTIARY AMINES
43. CHEMICAL TREATMENT OF NITROGEN COMPOUNDS FOR ISOTOPE ANALYSIS OF NITROGEN BY EMISSION SPECTROMETRY
44. THE INFLUENCE OF THE AUXILIARY WATER AND OF NITRIC ACID FLOW-RATE ABOUT $sup 15$N SEPARATION IN NITROX SYSTEM.
45. NITROGEN ISOTOPE EXCHANGE BETWEEN LIQUID N$sub 2$O$sub 3$ AND NO AT LOW TEMPERATURE AND ELEVATED PRESSURE
46. SEPARATION OF NITROGEN ISOTOPE BY CHEMICAL EXCHANGE OF AMMONIA IN ALCOHOL WITH AMMONIA.
47. EXCHANGE AND FRACTIONATION OF NITROGEN ISOTOPES BETWEEN NO AND NO$sub 2$.
48. ISOTOPE ANALYSIS OF NITROGEN BY EMISSION SPECTROSCOPY WITH PHOTOELECTRIC RECORDING
49. SATELLITE EXPERIMENT FOR DETECTING LOW ENERGY HEAVY COSMIC RAYS.
50. SEPARATION OF NITROGEN ISOTOPES BY CHEMICAL EXCHANGE OF AMMONIA SOLUTIONS IN WATER AND ACETONE WITH AMMONIA.
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