Dr. Roberts is the coordinator for the Regional Collaborative for Excellence in Science Teaching (A program to help science teacher become better science teachers), as well as being a full professor at The University of North Texas and performing research in various fields. He is honestly one of the busiest guys in the business. His current research topics span anywhere from Sun-Earth interactions, to microwave spectroscopy, to better education, all the way over to phase transitions of water.
Dr. Roberts has many many publications here is a list of his published papers:
1. "Linewidth of the Microwave Inversion Spectrum of Amonia" (with R.L. Legan, E. Rinehart, and C.C. Lin), Journal of Chemical Physics. 3, 4337-4345 (1965).
2. "Doppler Contribution to Microwave Linewidths" (with R.W. Parsons) Journal of Molecular Spectroscopy. 18, 412-417 (1965).
3. "Self and Foreign Gas Broadenint of the DELTAJ=0<-1 Line in the Rotational Spectrum of Methyl Chloride" (with R.W. Parsons) Journal of Molecular Spectroscopy. 20, 195-197 (1966).
4. "Linewidth of the Rotational Spectra of Symmetric-Top Molecules" (with T.K. Tung and C.C. Lin). Journal of Chemical Physics. 48, 4046-4049 (1968).
5. "Hyperfine Structure in the Inversion Spectrum of NH3" Journal of Molecular Spectroscopy. 30, 351-353 (1969).
6. "An Improved Microwave Linewidth Spectrometer" Revision Scientific Instruments. 40, 935-938 (1969).
7. "Linewidth Parameters for the 1<=J<=8, K=1 Lines of the Inversion Spectrum of NH3" Journal of Chemical Physics. 74, 1923-1926 (1970).
8. "An Experimental Study of Microwave Spectral Lines in Gases" (with R.P. Netterfield and R.W. Parsons) Journal of Physics B; (Atomic and Molecular Physics, London, England.) 5, 146-167 (1972).
9. "Experimental Microwave Collision Diameters in the Rotational Spectrum of H3CO" (with D.V. Rogers) Journal of Molecular Spectroscopy. 46,200-206 (1973).
10. "Cavity Perturbation Technique for Determining the Presence of Molecular Ions of Helium in a d.c. Discharch Plasma" (with M.W. Congleton andR.H. Freeman) Journal of Chemical Physics 59, 866-872 (1973).
11. "Linewidth Parameters of the Delta J=+1, 0<=J<=43, Rotational Transitions of the Sulpher Dioxide Molecule" (with W.H. Yang and B.J. Tejwani) Journal of Chemical Physics 58, 3797-4916 (1973).
12. "Ion-Acoustic Waves in a Bounded Plasma" (with B.S. Tang) Journal of Applied Physics 44, 3796-3797 (1973).
13. "Electron Collision Frequency Observations in H2, D2, N2O, CO2, and Argon at Pressures of 0.4-2.0 Torr" (with R.H. Freeman) Plasma Physics 16, 377-383 (1974).
14. "A Method for Measuring Relaxation Times for Collision Processes in the Surface Layers of Conductors and Semi-Conductors" (with L.W. Childress and K.H. Hong) Physics Letters 46A, 433-434 (1974).
15. "Microwave Properties of Liquids and Solids Using a Microwave Cavity as a Probe" (with K.H. Hong) Journal of Applied Physics 45, 2452-2456 (1974).
16. "The Effect of the Sample Iris in Determination of Dielectric Constants Using a Microwave Cavity" (with K.H. Hong) Journal of Korean Physical Society 7, (1974)
17. "Microwave Collision Diameters for Q-Branch Transitions in Monomeric Formaldehyde" (with A.C. Venkatachar) Journal of Molecular Spectroscopy 57, 166-168 (1975).
18. "Microwave Collision Diameters for Q-Branch Transitions in Formic Acid" (with A.C. Venkantachar) Journal of Molecular Spectroscopy 62, 3364-3365 (1975)
19. "The Measurement of Pressure Induced Shifts in the Delta J=0<-1 Transition of CH3Cl at Various Temperatures" (with I.R. Dagg, Canada, and R. W. Parsons, Australia) Journal of Molecular Spectroscopy 63, 241-248 (1976).
20. "Linewidth Parameters in the Rotational Spectrum of Methyl Cyanide" (with D.L. Swindle) Journal of Molecular Spectroscopy 77, 94-101 (1979).
21. "Dielectric Charches in Hyaluronate SOlutions at Microwave Frequencies as a Function of Concentration, System Ph and Temperature" (with S.K. Jani and J.N. Dahiya) Journal of Biopolymers 19, 934-944 (1980).
22. "Phase Transition Studies in Polar and Non-Polar Liquids at Microwave Frequencies" (with J.N. Dahiya and S.K. Jani) Journal of Chemical Physics 74, 3609-3615 (1981).
23. "Molecular Probing at Microwave Frequencies as a Means of Studying Atmospheric Motion and Composition" Proceedings of the 17th Space Congress, April 30-May 2, 1980, Coco Beach Florida, Section 2, 31-34 (1980).
24. "Linewidth Parameters in the Rotational Spectrum of CH3C15N" (with J.K. Messer) Journal of Molecular Spectroscopy 88, 231-233 (1982).
25. "Theoretical and Experimental Pressure Shifts in Some Select Rotational Transitions of the Methyl Cyanide Molecule" (with J.K. Messer and B. Khoobehi) Journal of Chemical Physics 76, 2914-2918 (1982)
26. "Dipole Moment of the Delta J=+1 Excited State of the CH3C14N Molecule" (with J.K. Messer) Journal of Chemical Physics 96, 351-352 (1982).
27. "Linewidth Parameters in the Rotational Spectrum of Nitrogen Dioxide" (with M.N. Moazzen-Ahmadi) Journal of Molecular Spectroscopy 96, 336-341 (1982).
28. "Infrared-Microwave Double Resonance of the SO2 and NO2 Molecules" Specral Line Shapes 2 Walter De Gruyter and Co., Berlin (1982).
29. "Infrared-Microwave Double Resonance Probing of the Population-depopulation of Rotational States in the NO2 Molecule" (with B. Khoobehi) Journal of Molecular Spectroscopy 97, 227-233 (1983).
30. "Pressure Broadening Theory of Asymmetric-Top Molecules Using the Methods of Irreducible Tensor Operators" (With M.N. Moazzen-Ahmadi) Journal of Radiative and Quantitative Spectroscopic and Radiative Transfer 30, 229-243 (1983).
31. "Observing the Hysteresis Effect in Detuning of a Resonant Microwave Cavity" (with V. Prakash) Journal of Chemical Physics 80, 4562-4563 (1984).
32. "On the Calculation of Pressure-Broadened Linewidths for Symmetric-Top Molecules Using the Modified Anderson Theory" (with J.K. Messer) Journal of Molecular Spectroscopy. 104, 308-314 (1984).
33. "The Microwave Spectrum of Propyne in the 17-70 GHz Region for the v10=1 and v9=1 Vibrational States" (with J.M. Ware) Journal of Chemical Physics 81, 1215-1219 (1984).
34. "The Microwave Spectrum of Propyne in the 17-90 GHz Region for the v10=2 Vibrational State" (with J.M. Ware) Journal of Chemical Physics 82, 5-7 (1985).
35. "Experimental Linewidth Parameters and Dipole Moments for the Propyne Molecule in the v9 and v10Vibrational States" (with V. Prakash) Journal of Chemical Physics 116, 17-22 (1986).
36. "The Microwave Spectrum of Propyne in the v10=4 Vibrational State" (with V. Prakash) Journal of Chemical Physics 84, 1193-1195 (1986).
37. "Perturbation of a Resonant Cavity with Select Alcohol Vapors" (with V. Prakash) Journal of Microwave Power 23, 45-50 (1986).
38. "Dielectric Resoponse of Germinating Wheat Seeds Using a Resonant Microwave Cavity as a Probe" (with F.L. Shafer and D. Smith) Journal of Microwave Power 24, 167-177 (1986).
39. " The Microwave Spectrum of Propyne in the 17-53GHz Region for the v10=3 Vibrational State" (with V. Prakash) Journal of Chemical Physics 84, 1193-1195 (1986).
40. "The Microwave Spectrum of Propyne in the 17-53GHz Region for the v10=4 Vibrational State" (with V. Prakash and W.M. Rhee) Journal of Chemical Physics 120, 169-174 (1986).
41. "The Microwave Spectrum of Propyne in the 17-72GHz Region for the v9=2 Vibrational State" (with W.M. Rhee) Journal of Chemical Physics 85, 6940-6944 (1986).
42. "Quadropole Structure in the Rotational Spectrum of the v8=1 and 2 and Ground Vibrational Levels in the CH3C14N for the Frequency Range 17-56GHz. (with I. An and W.M. Rhee) Journal of Chemical Physics 86, 4725-4729 (1987).
43. "A Comprehensive Model for Predicting the Rotational Spectrum of Propyne in the v10=1, 2, 3, 4, and 5 Vibrational States" (with W.M. Rhee) Journal of Molecular Spectroscopy 126, 359-369 (1987).
44. "Rotational Components of the v8=1, 2, and 3 and Ground Vibrational Level of CH3C15N for the Frequency Range 17-75GHz" (with F. Sabeh, I. An and W.M. Rhee) Journal of Molecular Spectroscopy 125, 348-357 (1987).
45. "Dielectric Properties and Phase Transitions Study of the K-15 Microwave Cavity Spectrometer" (with G.K. Johri and F. Sabeh) 23rd Microwave Power Symposium, Ottowa, Canada; Journal of Microwave Power (1988).
46. "Dielectric Response of Material Media Using the Detuning of a Resonant Microwave Cavity" (with F. Shafer and D. Smith) Proceedings of the IEEE, Transactions on Electrical Insulators, EI 23, 571-578 (1988).
47. "Microwave Spectra of 13C Substituted Methyl Cyanide for the Ground and v8=1, 2 Vibrational Levels for the Frequency Range 17-56 GHz" (With H. Tam and I. An), Journal of Molecular Spectroscopy 129, 202-215 (1988).
48. "The Vibration-Rotation Microwave Spectrum of 13C Tagged Acetonitrile in the Region 17 to 75 GHz for the Ground, v8=1 and 2 Vibrational States" (With H.S. Tam), Journal of Molecular Spectroscopy 134, 281-289 (1989).
49. "Rotational Components of the v10=1 and Ground Vibrational Levels of Propyne with 13C Substitutions for the Frequency Range 17-75GHz" (With H. Tam and I. An), Journal of Molecular Spectroscopy 135, 349-358 (1989).
50. "Calculation of the Rotational Constants A and C for a Slightly Perturbed C3v Symmetric Top Molecule" (With H.S. Tam), Structural Chemistry, 1, 211-216 (1990).
51. "A Study of Experimental and Theoretical Shifts in a Resonant Microwave Cavity Loaded With Polar and Non-Polar Molcules in Gas Phase" (With G.K. Johri and R. Ngoui) Journal of Microwave Power Institue 24, 227-235 (1990).
52. "Microwave Spectra of the 13CH313C15N and 13CH312C15N Molecules in the v3, v7, and v4 Vibrational Energy Levels Over the Frequency Range 17-95GHz" (with G.K. Johri and M. Al-Share), Journal of Physics B: Atomic, Molecular and Optical Physics 23, 2531-2541 (1990).
53. "Study of Dielectric Response of Water Using a Resonant Microwave Cavity as a Prove" (with G.K. Johri), Journal of Physical Chemistry 94 7386-7391 (1990).
54. "Dielectric Response of Select Ionic Solutions Using a Loaded Microwave Cavity Operating Near 9, 21, and 29 GHz as a Probe" (with M. Johri and G.K. Johri) Journal of Microwave Power 26, 82-89 (1991).
55. "Determination of Effective Potentials for Non-Polar Liquids Using the Continuum Model" (with M. Johri and G.K. Johri), Journal of Physics and Chemistry of Liquids, 24, 71-77 (1991).
56. "A Theoretical Model for Determining Oscillator Strength Using a Non-Spherical Molecular Cavity and Measurement of the He-Ne Laser Light Absorption Coefficient in Solutions" (with M. Johri and G.K. Johri) Journal of Physics and Chemistry of Liquids, 23, 101-107 (1991).
57. "An Experimental Study of Collision Broadening of Rotational Spectral Lines of 13CH313C15N in the ground level v8, n=1 and 2, Vibrationally Excited States at Microwave Frequencies", (with J. Hajsaleh, M. Al-Share, M. Johri and G.K. Johri) Journal of Chemical Physics 95, 3416-3421 (1991).
58. "Dielectric Response of Polyphasal Materials Using a Resonant Microwave Cavity as a Probe" (with F.H. Wang) Proceedings of the 14th International Liquid Crystals Conference, Pisa, Italy, June 21-26, 1992, Vol II P. 807 (1992).
59. Dielectric Response of Polyphasal Materials Using a Resonant Microwave Cavity as a Probe" (with F.H. Wang and Bin Lu) Molecular Crystals and Liquid Crystals in Science and Technology (1993).
60. “Teaching Science Through Observing Variable Stars” R. D. Benge and J. A. Roberts, American Association of Variable Star Observers (AAVSO), 23, 71-73 (1994).
61. “A Period Study of the Eclipsing Binary GK Cephei”, R. Benge and J. A. Roberts American Association of Variable Star Observers (AAVSO), 23, 20-27 (1994).
62. "Mapping the Sun's Path with a Pinhole Camera", Science Activities, 32, 24-27 (1995).
63. "The Temperature Dependency of Some of the Thermodynamical Properties of Aqueous Binary Mixture Systems", (With Y. Zheng) J. Phys.: Condens. Matter 8 , 8089-8103 (1996).
64. “Microwave Spectra of CD3 CCD in the 24 to 42 GHz Region” (With M. Al-Share)Mu’Tah Journal of Research and Studies 11, 71 (1996).
65. “Microwave Spectra of Deuterated Methyl Acetylene Molecule CD3 CCD in the 24 to 90 GHz Region” (With M. Al-Share, W. M. Rhee, J. Gadhi and J. Hajsaleh.) Journal of The Korean Physical Society, (1999, In Press.)
66. "Computer Assisted Reduction of Experimental Data for the Index of Refraction of Water Systems", J. E. Gadhi, J. N. Dahiya and J. A. Roberts, Physics and Modern Topics in Mechanical and Electrical Engineering, Nikos E. Mastorakis, Ed., World Scientific Society, Military Institutions of University Education Hellenic Naval Academy, Greece, (2000)
67. "Computer Analysis of Microwave Conductivity Response Data Taken on Select Superconductors",J. N. Dahiya, Mangal Dhoubhadel and J. A. Roberts, Physics and Modern Topics in Mechanical and Electrical Engineering, Nikos E. Mastorakis, Ed., World Scientific Society, Military Institutions of University Education Hellenic Naval Academy, Greece (2000).
68. "Correlation Between Ring Growth in a Giant Redwood Tree and the Sun Spot Cycle", (With David Thomas.) The Texas Science Teacher, 28, 13-16 (2000).
69. "Experimental Methods of Studying the Fluctuations of the Refractive Index of Binary Mixtures of Select Gases and Water" J. A. Roberts, J. N. Dahiya and J. E. Gadhi, Advances in Physics, Electronics and Signal Processing Applications, Nikos Mastorakis, ED, Military Institutions of University Education Hellenic Naval Academy, Greece (2000)
70. "Dielectric Relaxation Behavior of Select Liquid Crystals Using a Computer Controlled Resonant Cavity" B. F. Draayer, J. N. Dahiya and J. A. Roberts, Advances in Physics, Electronics and Signal Processing Applications, Nikos Mastorakis, ED, Military Institutions of University Education Hellenic Naval Academy, Greece (2000)
71. "Radio Astronomy Activities as a Teaching Tool for Science", Tim Imholt, Raymond Benge and Jim Roberts, The Texas Science Teacher, 29, #2, 44-46 (October, 2000)
72. "Microwave Dielectric Analysis of Selected Materials" J. N. Dahiya and J. A. Roberts, J. Microwave Power and Electromagnetic Radiation, (in press).
73. "Utilizing the Sun as a Teaching Tool for Scientific Observation" Tim Imholt, J.B. Scott and J.A. Roberts, The Texas Science Teacher.
74. 21.11 cm Emissions From the Sun During a Period of the Sun Spot Cycle." Timothy Imholt and J.A. Roberts, Journal of the Society of Amateur Radio Astronomers.
75. "Determination of the Celestial Speed
of Electromagnetic Waves Using Changes in the Delay or Radio Signals from
Io for a Period of Six Months." J.B. Scott, Tim Imholt, and Jim Roberts,
2001 Journal of the Society of Amateur Radio Astronomers.
After all of these papers the following laboratory manuals and workshop modules for teaching science, mathematics and astronomy.
1. Physics 1050 manual: Astronomy Laboratory Manual,
Experiments on The Solar system (A laboratory workbook, 123 pages.)
2. Physics 1060 manual: Astronomy Laboratory
Manual, Stars and the Universe (A
laboratory workbook,
140 pages.)
3. 'Science and Mathematics Workshops:
Preparing for Space Travel in the Twenty
First Century "(A set of exercises designed for teaching science
and mathematics to
teachers of science, 192 pages.)
4. 'Science and Mathematics Workshops: Preparing
for Space Travel in the Twenty First Century "(A ten volume set of
exercises designed for teaching science and
mathematics to teachers of science.)
A. Module 1: Measurements
(26 pages)
B. Module 2: Properties of
Magnets and Field Exercises (45 pages)
C. Module 3: Determination
of Sun and Moon Motion with Gravity in Action (47 pages)
D. Module 4: Experiments
with Gravity (34 pages
E. Module 5: Working
with Light and Sound Waves (42 pages)
F. Module 6: Basic Electricity
and Faraday's Laws (48 pages)
G. Module 7: Working
with Heat and Heat Energy (40 pages)
H. Module 8: Lenses,
Lasers and Light Scattering (40 pages)
I. Module 9: Force,
Energy and Harnessing Nature (44 pages)
J. Module 10: Man and
his Simple Machines (43 pages)
Awards and Hobbies
1. Faculty Development Award (North Texas
State University).
2. Australian Grant for Travel (University of
Queensland, Brisbane, Australia, 1976).
3. Ford Foundation Teaching Award (University
of Oklahoma, 1966).
4. Undergraduate Development Grant in Astronomy
I (1988)
5. Undergraduate Development Grant in Astronomy
II (1998)
6. Faculty Development Award (North Texas State
University).
7. Nominated to represent the University of North
Texas in state wide competition for the Minnie Steven Piper Award for outstanding
teaching. (2000)
8. I hold an Extra Class radio amateur operators
license and have received numerous diplomas for activities in radio amateur
work in the last fifteen years.
9. Nominated 2000 for the outstanding science
teaching Skoog state-wide award.
10. Nominated for the President's Council
Outstanding Teaching Award