Works by Demarco, John J.

Results: 25

COMMUNICATIONS.

Published in:

1980

By:

Slawsky, Norman J.;
Demarco, John J.;
Hamilton, Randy H.;
Thomas, John C.;
Stolarow, J. H.;
Sharkansky, Ira

Publication type:

Letter

IS THE PRICE RIGHT? STATE AND LOCAL GOVERNMENT ARCHITECT AND ENGINEER SELECTION.

Published in:

Public Administration Review, 1980, v. 40, n. 3, p. 269, doi. 10.2307/975382

By:

Slawsky, Norman J.;
DeMarco, John J.

Publication type:

Article

TRAINING IN LOCAL GOVERNMENTS: ATTITUDES AND PRACTICES.

Published in:

Southern Review of Public Administration, 1979, v. 2, n. 4, p. 475

By:

Nigro, Lloyd G.;
DeMarco, John J.

Publication type:

Article

Antiproton radiotherapy: peripheral dose from secondary neutrons.

Published in:

Hyperfine Interactions, 2009, v. 194, n. 1-3, p. 313, doi. 10.1007/s10751-009-0086-6

By:

Fahimian, Benjamin P.;
DeMarco, John J.;
Keyes, Roy;
Bassler, Niels;
Iwamoto, Keisuke S.;
Zankl, Maria;
Holzscheiter, Michael H.

Publication type:

Article

IMPLEMENTING PERFORMANCE APPRAISAL REFORM IN THE UNITED STATES CIVIL SERVICE.

Published in:

Public Administration, 1983, v. 61, n. 1, p. 45, doi. 10.1111/j.1467-9299.1983.tb00500.x

By:

Demarco, John J.;
Nigro, Lloyd G.

Publication type:

Article

Using Employee Attitudes and Perceptions to Monitor Supervisory Implementation of CSRA Performance Appraisal Systems.

Published in:

Public Personnel Management, 1983, v. 12, n. 1, p. 43, doi. 10.1177/009102608301200105

By:

DeMarco, John J.;
Nigro, Lloyd G.

Publication type:

Article

Collective Bargaining and the Attitudes of Local Government Personnel Managers.

Published in:

Public Personnel Management, 1980, v. 9, n. 3, p. 160, doi. 10.1177/009102608000900306

By:

Nigro, Lloyd G.;
DeMarco, John J.

Publication type:

Article

Erratum: 'Estimating organ doses from tube current modulated CT examinations using a generalized linear model' [Med. Phys. Vol 44 (4), 1500-1513 (2017)].

Published in:

Medical Physics, 2017, v. 44, n. 7, p. 3883, doi. 10.1002/mp.12324

By:

Bostani, Maryam;
McMillan, Kyle;
Lu, Peiyun;
Kim, Grace Hyun J.;
Cody, Dianna;
Arbique, Gary;
Bruce Greenberg, S.;
DeMarco, John J.;
Cagnon, Chris H.;
McNitt‐Gray, Michael F.

Publication type:

Article

Estimating organ doses from tube current modulated CT examinations using a generalized linear model.

Published in:

Medical Physics, 2017, v. 44, n. 4, p. 1500, doi. 10.1002/mp.12119

By:

Bostani, Maryam;
McMillan, Kyle;
Lu, Peiyun;
Kim, Grace Hyun J.;
Cody, Dianna;
Arbique, Gary;
Greenberg, S. Bruce;
DeMarco, John J.;
Cagnon, Chris H.;
McNitt‐Gray, Michael F.

Publication type:

Article

Accuracy of Monte Carlo simulations compared to in-vivo MDCT dosimetry.

Published in:

Medical Physics, 2015, v. 42, n. 2, p. 1080, doi. 10.1118/1.4906178

By:

Bostani, Maryam;
Mueller, Jonathon W.;
McMillan, Kyle;
Cody, Dianna D.;
Cagnon, Chris H.;
DeMarco, John J.;
McNitt‐Gray, Michael F.

Publication type:

Article

Attenuation-based size metric for estimating organ dose to patients undergoing tube current modulated CT exams.

Published in:

Medical Physics, 2015, v. 42, n. 2, p. 958, doi. 10.1118/1.4906132

By:

Bostani, Maryam;
McMillan, Kyle;
Lu, Peiyun;
Kim, Hyun J.;
Cagnon, Chris H.;
DeMarco, John J.;
McNitt‐Gray, Michael F.

Publication type:

Article

Validation of a Monte Carlo model used for simulating tube current modulation in computed tomography over a wide range of phantom conditions/challenges.

Published in:

Medical Physics, 2014, v. 41, n. 11, p. 1, doi. 10.1118/1.4887807

By:

Bostani, Maryam;
McMillan, Kyle;
DeMarco, John J.;
Cagnon, Chris H.;
McNitt ‐ Gray, Michael F.

Publication type:

Article

Estimating peak skin and eye lens dose from neuroperfusion examinations: Use of Monte Carlo based simulations and comparisons to CTDIvol, AAPM Report No. 111, and ImPACT dosimetry tool values.

Published in:

Medical Physics, 2013, v. 40, n. 9, p. 091901, doi. 10.1118/1.4816652

By:

Zhang, Di;
Cagnon, Chris H.;
Villablanca, J. Pablo;
McCollough, Cynthia H.;
Cody, Dianna D.;
Zankl, Maria;
Demarco, John J.;
McNitt Gray, Michael F.

Publication type:

Article

The feasibility of a regional CTDIvol to estimate organ dose from tube current modulated CT exams.

Published in:

Medical Physics, 2013, v. 40, n. 5, p. 051903, doi. 10.1118/1.4798561

By:

Khatonabadi, Maryam;
Kim, Hyun J.;
Lu, Peiyun;
McMillan, Kyle L.;
Cagnon, Chris H.;
DeMarco, John J.;
McNitt Gray, Michael F.

Publication type:

Article

Radiation dose reduction in medical x-ray CT via Fourier-based iterative reconstruction.

Published in:

Medical Physics, 2013, v. 40, n. 3, p. 031914, doi. 10.1118/1.4791644

By:

Fahimian, Benjamin P.;
Zhao, Yunzhe;
Huang, Zhifeng;
Fung, Russell;
Mao, Yu;
Zhu, Chun;
Khatonabadi, Maryam;
DeMarco, John J.;
Osher, Stanley J.;
McNitt ‐ Gray, Michael F.;
Miao, Jianwei

Publication type:

Article

A comparison of methods to estimate organ doses in CT when utilizing approximations to the tube current modulation function.

Published in:

Medical Physics, 2012, v. 39, n. 8, p. 5212, doi. 10.1118/1.4736807

By:

Khatonabadi, Maryam;
Zhang, Di;
Mathieu, Kelsey;
Kim, Hyun J.;
Lu, Peiyun;
Cody, Dianna;
DeMarco, John J.;
Cagnon, Chris H.;
McNitt-Gray, Michael F.

Publication type:

Article

The feasibility of patient size-corrected, scanner-independent organ dose estimates for abdominal CT exams.

Published in:

Medical Physics, 2011, v. 38, n. 2, p. 820, doi. 10.1118/1.3533897

By:

Turner, Adam C.;
Zhang, Di;
Khatonabadi, Maryam;
Zankl, Maria;
DeMarco, John J.;
Cagnon, Chris H.;
Cody, Dianna D.;
Stevens, Donna M.;
McCollough, Cynthia H.;
McNitt-Gray, Michael F.

Publication type:

Article

The feasibility of a scanner-independent technique to estimate organ dose from MDCT scans: Using CTDI<sub>vol</sub> to account for differences between scanners.

Published in:

Medical Physics, 2010, v. 37, n. 4, p. 1816, doi. 10.1118/1.3368596

By:

Turner, Adam C.;
Zankl, Maria;
DeMarco, John J.;
Cagnon, Chris H.;
Zhang, Di;
Angel, Erin;
Cody, Dianna D.;
Stevens, Donna M.;
McCollough, Cynthia H.;
McNitt-Gray, Michael F.

Publication type:

Article

Reducing radiation dose to selected organs by selecting the tube start angle in MDCT helical scans: A Monte Carlo based study.

Published in:

Medical Physics, 2009, v. 36, n. 12, p. 5654, doi. 10.1118/1.3259773

By:

Di Zhang;
Zankl, Maria;
DeMarco, John J.;
Cagnon, Chris H.;
Angel, Erin;
Turner, Adam C.;
McNitt-Gray, Michael F.

Publication type:

Article

A method to generate equivalent energy spectra and filtration models based on measurement for multidetector CT Monte Carlo dosimetry simulations.

Published in:

Medical Physics, 2009, v. 36, n. 6, p. 2154, doi. 10.1118/1.3117683

By:

Turner, Adam C.;
Di Zhang;
Kim, Hyun J.;
DeMarco, John J.;
Cagnon, Chris H.;
Angel, Erin;
Cody, Dianna D.;
Stevens, Donna M.;
Primak, Andrew N.;
McCollough, Cynthia H.;
McNitt-Gray, Michael F.

Publication type:

Article

Variability of surface and center position radiation dose in MDCT: Monte Carlo simulations using CTDI and anthropomorphic phantoms.

Published in:

Medical Physics, 2009, v. 36, n. 3, p. 1025, doi. 10.1118/1.3078053

By:

Di Zhang;
Savandi, Ali S.;
Demarco, John J.;
Cagnon, Chris H.;
Angel, Erin;
Turner, Adam C.;
Cody, Dianna D.;
Stevens, Donna M.;
Primak, Andrew N.;
McCollough, Cynthia H.;
McNitt-Gray, Michael F.

Publication type:

Article

Report of the AAPM Task Group No. 105: Issues associated with clinical implementation of Monte Carlo-based photon and electron external beam treatment planning.

Published in:

Medical Physics, 2007, v. 34, n. 12, p. 4818, doi. 10.1118/1.2795842

By:

Chetty, Indrin J.;
Curran, Bruce;
Cygler, Joanna E.;
DeMarco, John J.;
Ezzell, Gary;
Faddegon, Bruce A.;
Kawrakow, Iwan;
Keall, Paul J.;
Liu, Helen;
Ma, C.-M. Charlie;
Rogers, D. W. O.;
Seuntjens, Jan;
Sheikh-Bagheri, Daryoush;
Siebers, Jeffrey V.

Publication type:

Article

A Monte Carlo based phase space model for quality assurance of intensity modulated radiotherapy incorporating leaf specific characteristics.

Published in:

Medical Physics, 2002, v. 29, n. 12, p. 2952, doi. 10.1118/1.1523409

By:

Aaronson, Randi F.;
DeMarco, John J.;
Chetty, Indrin J.;
Solberg, Timothy D.

Publication type:

Article

Dosimetric parameters for three low-energy brachytherapy sources using the Monte Carlo N-Particle code.

Published in:

Medical Physics, 2002, v. 29, n. 5, p. 662, doi. 10.1118/1.1469627

By:

DeMarco, John J.;
Hugo, Geoff;
Solberg, Timothy D.

Publication type:

Article

Feasibility of using a transmission ion chamber for QA tests of medical linear accelerators.

Published in:

Journal of Applied Clinical Medical Physics, 2024, v. 25, n. 2, p. 1, doi. 10.1002/acm2.14245

By:

Farrokhkish, Makan;
Veres, Andrew J.;
Fong de los Santos, Luis E.;
DeMarco, John J.;
Islam, Mohammad K.

Publication type:

Article