Tutor's Resume at JC-PD LLC Online Math, Physics, and Computer Science Tutoring

Affordable Online Tutoring in Computer Programming, Physics, and Math by a Physics PhD + postdoc / Math BS



Peter P. Domitrovich, Ph.D. Resume

Professional Experience:

08/14--Present

Software engineering consultant in C++ for Adept PD, Philadelphia, PA. Coded geometry extraction using the DWF toolkit for dwf files for construction projects. Part-time, online only. Finished the program essentially for REVIT. NAVISWORKS requires a change in Autodesk’s dwf extraction tool. A work-around is possible, but funding was ended beforehand. Recent work was not paid, and I ended the project (5/19-10/19).

Independent contractor with XXXX.com (German, Word) (06/17-12/18) or privately (JC-PD LLC (AKA Tutoring by PPD) (06/16-present) tutoring in C, C++, Java, C#, python, MATLAB, math, physics, and statistics. Independent contractor also with Superprofs and Chegg.

Worked for XXXXX.com from (11/14 – 07/17) (5.0 star tutor). (Tutoring CS: C, C++, C#, Java, python, MATLAB, FORTRAN 95, bash shell scripting, Win32 shell scripting, Linux system administration, UNIX). Also tutoring these subjects: math through a math minor, numerical analysis, college physics, university physics, statistics, ACT, SAT, computational statistical mechanics, and probability.

Established a business called JC-PD LLC. JC-PD LLC tutoring (as of 6/17) and app creation for retail sale (as of 8/17). Retail book seller on Amazon.com (6/16-present).

Adjunct instructor of math and physics at Cameron U, Lawton, OK (1/15-6/16)

Adjunct instructor of physics at WOSC, Altus, OK (1/16-6/16)

Freelance programming for Guru.com. (8/16-8/18) (Rarely).

Total of about 4 years of part-time tutoring experience in St. Louis, MO for a private company and, in Edwardsville, IL for SIUE. I have additionally about 1.5 years of part-time and periodically full-time experience (2016 - 2017) with online or primarily online tutoring employers. I began this tutoring business in June, 2017, which has been a full-time job.

03/13-07/14 Models and Simulations ProgrammerFires Battle Lab

Using C++ in a RHEL 5.8 64-bit OS, programmed in the modeling and simulations group. Added new behavior to a UAV model with three degrees of freedom.

Wrote (Graphical User Interface) GUI code using GTK+2.0 with C++ in a Linux OS for a new FIRESIM XXI GUI. Utilized g++, SCRUM, DIS, and HLA.

Performed unit and system testing. Debugged code using ddd. Merged code forward. Created reports.

05/08--02/13 Software Engineer, Jr. CGI / CGIFEDERAL

Maintained the Computer Meteorological Data-Profiler (CMDP). Helped to correct code written in Java Swing. Tested a new capability of the CMDP using AFATDS.

Tested the Meteorological Measuring Set Profiler (MMSP) to determine its range as a function of latitude. Discovered inconsistencies in the measurements. Determined that there was a problem in the model code and solved it. This problem had been present and unsolved for years.

Placed again into full-time software sustainment of the MMSP profiler.

Managed the SDF for a new profiler software release, and assisted in the development of that new release. Primarily independently, upgraded the MMSP modeling computer to RHEL 6.0. Set up a Solaris 10 build machine for the new profiler.

Designed, developed, and tested, primarily independently, the code necessary to allow the MMSP profiler to handle two types of GRIB data, and presented a code walk through. Found seven errors in the profiler code written by the OEM. C++, csh, sh, and Perl were utilized for a Solaris OS computer among a system of three networked computers.

Helped to set up a Solaris 8 build machine for an older version of the profiler. Assisted with putting the software transition of the profiler (18,000 files) from the OEM to the FSED under CM control.

Developed algorithms, programs, and shell scripts to analyze radar detection data and debugging output data for the LCMR/Q48. Deduced logical, statistical data analysis issues with mathematical proof in C++ radar code written by the OEM. Assisted with the algorithm to detect rockets with the LCMR.

Wrote an 87-page document describing how to playback recordings using the process automation programs and shell scripts I independently developed for Linux by affecting synchronization of the interface computer and radar cylinder computer, more insight was obtained into the various software modules of the entire system. With these methods, a bug manifested by timing discrepancies between the two computers was detected in the LCMR system.

Successfully completed the Modern Radar Systems and Phased Arrays Radar short courses from Georgia Institute of Technology.

Was invited to create and program an algorithm to predict the current likelihood of obtaining the correct FY-end planned effort based on the current actual effort for larger contracted projects. My solution was selected over those offered by the section managers. The CGI vice-president came to Lawton to see a presentation of my work, but I was not allowed to attend. The algorithm provides simple, visual evidence of the likelihood of future success obtaining the correct FY-end planned effort every pay period. The original, complex mathematical and statistical algorithm is the primary indicator of the status of each project. This algorithm and several simple, supplemental algorithms provided by several section managers were approved by the government and have been utilized since 2009. Programmed the entire solution for WINXP Pro in C using MSVS C++ express and wrote a 60-page user’s manual for this program. A senior engineer, my former team leader, attempted to program this solution in Java and could not.

Took the personal software process (PSP) fundamentals and advanced courses of the SEI, Carnegie Mellon University, over a 2-week period in August 2009.

Wrote a 156-page, single-spaced description of one run through the entire weather prediction algorithm for the laptop profiler. Wrote a document describing the corrections I made to the laptop software.

Researched the new WRF weather model as compared to the MM5 model. Developed a plan to upgrade the laptop profiler software with a more modern weather model. CGI obtained funding for this task in 2012 for the CMDP.

Independently, tested and debugged the prototype laptop profiler in conjunction with the currently fielded profiler by comparing numerical output within various identical modules of the systems. These comparisons revealed many issues in both systems. Corrected (Unix/Linux/FORTRAN 77) code for most software modules of the laptop profiler before the project ended.

Began maintenance of the MMSP. Studied Java several months.

Computers (OS): x86 (WINXP Pro, Vista Enterprise, and Windows 7 Pro Enterprise); (Dell Dual Core laptop, RHEL 2.6); (VMware, VT Miltope); (RHL Fedora 5, Solaris 7); (RHEL 5.5, Solaris 8); (RHEL 6.0, Solaris 10).

Programming and scripting languages: C, C++, FORTRAN 77 and 90, in Linux and Solaris; WINXP/MSVS/C++ express C; Linux/Solaris/sh, csh; Linux/bash; Solaris/Perl.

07/05--04/08 Staff Scientist Washington University School of Medicine, Heart Rate Variability Laboratory

I developed about 80% of the research methods/tools that are still being used in 2014: cf. hrv.wustl.edu

Independently, on 01/08/08, repaired the qrsdk.c program of GE-Marquette. The program had intermittently caused misalignment of the detected QRS-complex peaks and the actual ECG-QRS-complex peaks for more than a decade due to unexpected characters in the beginning of the binary QRS file output by the scanner.

Independently designed and programmed a 48,000-line Heart Rate Variability (HRV) analysis program (UNIX/Cygwin/C)(gcc). HRV is a mathematical time series analysis of annotated cardiac inter-beat intervals. Completed the mathematics for all of the many new algorithms included in the program. Features are: 1) Easy variable selection. 2) Easy analysis period selection. 3) Automatic placement of results in a .csv spreadsheet. 4) HRV analyses methods for sleep and physiological studies. 5) 700 epoch-averaged or total-recording variables. 6) 140 adjustable parameters. 7) HRV analyses of ECG and EEG signals. 8) Automatic concatenation of results while running in batch mode. 9) Computation of time- and frequency-domain, and nonlinear variables. 10) Inclusion of several original methods of analyses, 11) Multithreading

Programmed the Detrended Fluctuation Analysis (DFA) algorithm (UNIX/Cygwin/C). Discovered an error in the code of the original authors’ version posted on www.physionet.org The web site acknowledges the discovery in the program’s documentation.

Independently designed and programmed (UNIX/Cygwin/C) a method to line up R-wave peak times of QRS complexes in RR-interval beat files with the correct R-wave peak times in the ECG. Recorder and scanner errors caused misalignment. The method can align RR-interval beat files with ECG’s of various sampling rates.

Upgraded the HrvInteractive (MSVS2005Pro/MFC/C++) GUI described below. The lab utilizes HrvInteractive extensively to find in-bed/out-of-bed times from graphically displayed HRV plots over a 24-hour period.

Wrote shell scripts and programs to prepare and load the text ECG’s for scanning on a GE-Marquette MARS PC (WINXP) Holter (ambulatory ECG recorder) scanner and a Cardioscan Holter scanner.

Completed the writing of MATLAB code necessary to automate the running of the QT-segment variability index (QTVI) program developed at Johns Hopkins Medical School.

Collected data from heart transplant patients on my personal time until about 07/2007. Approximately 500 ECG’s were collected.

Part-time UNIX system administration.

07/03--06/05 Research Associate Washington University School of Medicine, Heart Rate Variability Laboratory

Independently designed and programmed (UNIX/C) methods to automate the extraction of data for HRV analyses of scanned Holter recordings for the SAGE drug study.

Independently designed and programmed (UNIX/C) methods to compute HRV data for unusual studies: 1) HRV of mice. 2) HRV of anxiety and consequent work injuries of professional musicians. 3) HRV anxiety studies of subjects during various sleep stages.

Migrated the HrvInteractive GUI to (MSVS2003Pro/MFC/C++) from MSVC++ 6 standard edition. Designed and programmed additional capabilities in the GUI.

Collected data from heart transplant patients on my personal time.

Part-time UNIX system administration.

07/98--06/03 Research Associate Barnes-Jewish Hospital

Independently designed and programmed software (UNIX/Linux/C) to read various commercial binary formats of ECG’s and the EDF format of polysomnograms for conversion to text. Wrote shell scripts and programs to prepare and load the text ECG’s for scanning on a GE-Marquette MARS 8000 Holter scanner (Solaris 6).

Designed and programmed, independently, (UNIX/Cygwin/C) the automation of the HRV analyses of the TAKEDA drug study. Automation began with the extraction of ECG’s with a Delmar Medical Systems’ Impresario Holter scanner. Automation ended with Holter scanning on the MARS 8000 and then HRV analyses.

Independently designed and programmed an HRV interactive GUI (MSVC++ 6/MFC/C++), called HrvInteractive, using a 4-pane dynamic splitter window, the single document interface, and the document/view architecture. The GUI currently provides 270 different four-paned views, along with one- and two-paned views. Segments can be quickly viewed for up to 24 hours of data. There are 59 adjustable parameters. HrvInteractive also contains: 1) Time- and frequency-domain HRV. 2) Nonlinear HRV. 3) 720 different segment lengths. 4) An editable sleep apnea detector based on heart rate. 5) An HRV application to determine in-bed/out-of-bed times using 13 different views. Independently designed and programmed the algorithms for sleep apnea detection. Independently designed and programmed all of the graphical representations of HRV data.

Independently designed and programmed, for short recordings from heart transplant recipients: 1) A fully automated 1000 Hz ECG scanner (UNIX/Linux/DOS/C). 2) Algorithms for QRS signal averaging. 3) Algorithms to detect cardiac allograft rejection directly from the ECG signal.

Received additional funding by the BJH Foundation for and carried out research in cardiac rejection detection for cardiac transplant recipients using HRV and signal processing analyses. The funding lasted one year. Afterwards, collected data from heart transplant patients on my personal time.

Independently designed and programmed (UNIX/DOS/C) an ECG scanner that detected R-wave peaks and allowed interactive editing of the R-wave peak locations and beat labels, while using only 64KB of RAM. Applied the scanner to ECG’s obtained from polysomnograms of patients with suspected sleep apnea. Analysis of the output of this scanner was used obtain a $3,000,000 grant by Robert M. Carney, a psychologist. Scanning for some of the unusual HRV projects mentioned above required this ECG scanner.

Designed and programmed algorithms (UNIX/C) for the analysis of HRV data of various patient populations. Programmed algorithms from original research articles. Enhanced HRV code by including new signal processing, data processing, and numerical algorithms. Designed and programmed shell scripts and C programs to automate data processing. Invented an algorithm to detect exceptionally high HRV (assumed erratic sinus rhythm).

Independently designed and programmed algorithms for the automatic detection of sleep apnea (DOS/C). Designed and programmed a sleep apnea scanner similar to the previously mentioned ECG scanner that used 64KB of RAM. Designed and programmed a plot of 24-hour heart rate tachograms (UNIX/Cygwin/C). The lab uses the tachogram extensively. Developed an easy method to detect sleep apnea with these tachograms. Cardioscan, owned by Bill Parsons, utilizes the tachogram and easy sleep apnea detection method.

Part-time UNIX system administration beginning in the year 2000.

01/01--06/01 Remote, Part-time, Temporary Computer Programming Consultant Itamar Medical Ltd.

Independently designed and programmed the analysis of experimental data obtained from a pulse arterial tonometer (PAT) device placed on the tip of a subject’s finger. The software was written using (DOS/C).

01/97--06/98 Research Technician II Barnes-Jewish Hospital

Independently derived the mathematics and programmed univariate Cox and logistic regression statistical algorithms (UNIX/C). Showed that high HRV predicts mortality in post-myocardial infarction patients.

Independently programmed: 1) Algorithms from nonlinear dynamics. 2) Csh scripts for batch jobs. 3) Algorithms for the statistical analysis and/or manipulation of output data (UNIX/C). All algorithms were utilized for the analysis of clinical data. Programmed in the SAS statistical programming language to analyze data.

Obtained a grant from the BJH Foundation to detect acute rejection in cardiac transplant patients using heart rate variability analyses.

01/97--04/98 Remote, Part-time, Temporary Computer Programming Consultant Department of Psychology, University of Missouri in Columbia

Independently designed and programmed an HRV analysis package (UNIX/Linux/DOS/C) that included: 1) Five autoregressive spectral analyses algorithms. 2) A smoothed-pseudo-Wigner-Ville time-frequency analysis algorithm. 3) Spectral decomposition for the autoregressive analysis. 4) Statistical algorithms for the validation of the autoregressive models. 5) HRV time-domain algorithms. 6) Algorithms from nonlinear dynamics. 7) Algorithms for statistical analysis and/or further processing of the output data. 8) Utilization of only 64 KB of RAM. Autoregression, FFT, and filtering algorithms were translated from FORTRAN 77. Tested code. Completed the mathematics for the statistical analyses, spectral decomposition, and time-frequency analyses. The National Institutes of Health later purchased the software. Very many publications have been produced with this code.

Education:

Southern Illinois University, Edwardsville, IL; S. Mathematics; 08/31/1978; GPA: 4.42/5.0 (3.54/4.0).

Southern Illinois University, Edwardsville; (All but Master's Degree thesis) Physics; 05/1980; GPA: 4.88/5.0 (3.90/4.0).

Washington University, St. Louis, MO; A. Physics; 05/21/1982; GPA: 3.18/4.0.

Washington University, St. Louis, MO; D. Physics; 12/19/1991; GPA: 3.34/4.0. (W. H. Dickhoff, Ph.D.)

Eberhard-Karls Universität Tübingen, Tübingen, Germany; Institute for Theoretical Physics; PostDoctoral Fellowship; 04/1992 –08/1993and (part-time: 09/1993 –12/1993). (Herbert Muether, Ph.D.)

University of Missouri, St. Louis; 36 semester hours toward a M.Ed. in Sec. Ed. plus a Mathematics teaching certification (Also took several advanced math classes.); 01/1994 –12/1995; GPA: 3.83/4.0.

Dissertation:

Spectral Functions and the Validity of the Shell Model in Finite Nuclei. After working on my dissertation for four years, in1986, I changed from a dissertation in Low Temperature Experimental Physics to one in Nuclear Many Body Theory.

Honors/Awards:

B.S. with honors, 1978; Illinois State Scholar, 1974-1978; PiMuEpsilon honorary Mathematics Fraternity, Southern Illinois University; Washington University Fellow, 1982-1985. In 2008, Who’s Who in America invited me to submit my biography, and I did not.

Summary of System Administration and Mathematics Experience as of 4/1/2008:

For nine of the past twelve years, in the HRV lab, I was the only person with knowledge of computer programming. Also in the HRV lab, I was the only person capable of doing sophisticated mathematical calculations. Between 1975 and 1994, I have been studying or regularly doing advanced mathematics. In 1991, I significantly improved the Levenberg-MarQuardt algorithm by finding a much better estimate of the global minimum, while gaining professional programming experience in (Unix/C). From 1995 to March 2008, I have occasionally done advanced mathematics on the job.

I have been the part-time UNIX/Linux system administrator for 8 years in the HRV lab. I managed one RHL 7.3 server, one Solaris 7 server, and two Solaris 8 servers. The servers were an IBM PC, a Sun SPARCstation 5, a Sun Ultra Enterprise 450, and a Sun Ultra 60, respectively. I also spent years administrating the x86 PC’s (WIN95, WIN98, WIN2000 Pro, WINXP Pro) in the lab.

Summary of Prior Teaching Experience:

08/91-12/91: Part-time College Physics instructor, St. Louis Community College at Meramec, St. Louis, Missouri.

08/86-12/91: Research Assistant, Graduate Teaching Fellow, or Graduate Student working on my Ph.D. dissertation in Nuclear Many-Body Theory, Physics Department, Washington University, St. Louis, Missouri. Passed the supervised teaching requirement included in my Ph.D. degree.

06/82-05/86: Washington University Fellow or Graduate Teaching Fellow, working on my Ph.D. dissertation in Low Temperature Experimental Physics, Physics Department, Washington University, St. Louis, Missouri.

08/80-06/82: Graduate Teaching Fellow and Graduate Student, Physics Department, Washington University, St. Louis, Missouri.

08/78-06/80: Teaching Assistant and Graduate Student, Physics Department, Southern Illinois University, Edwardsville, Illinois. (Instructor of a lab course for one quarter).

List of Publications

As of 5/14/22, I have 2,317 citations (Researchgate).

PUBLISHED ARTICLES:

  1. Dickhoff WH, Domitrovich PP, Polls A, Ramos A. The Foundation of the Nuclear Shell model. Condensed Matter Theories, Vol.5, V.C. Aguilera-Navarro, ed., (Plenum, New York, 1990, pp.275-83).
  2. Dickhoff WH, Domitrovich PP, Allaart K, Brand MGE, Muller FA, Rijsdijk G, Polls A, Ramos A. Generalized Spectral Functions and the Validity of the Shell Model. Two Nucleon Emission Reactions, O. Benhar and A. Fabrocini, eds., (ETS Editrice, Pisa, 1991, pp.332-47).
  3. Domitrovich PP, Bückers D, Müther H. Nambu-Jona--Lasinio Models beyond the Mean-Field Approximation. Phys Rev C 48(1), 1993, pp. 413-22. PMID: 9968835.
  4. Domitrovich PP, Müther H. On the Analytic Structure of the Quark Self-Energy in NJL Models. J Phys G 20(12), 1994, pp. 1885-1900.
  5. Hogue CW, Domitrovich PP, Stein PK, Despotis GD, Re L, Shuessler RB, Kleiger RE, Rottman JN. RR Interval Dynamics Prior to Atrial Fibrillation in Patients after Coronary Artery Bypass Graft Surgery. Circulation 98, 1998, pp. 429-34. PMID: 9714093.
  6. Stein PK, Ehsani AA, Domitrovich PP, Kleiger RE, Rottman JN. The Effect of Exercise Training Heart Rate Variability in Healthy Older Adults. Am Heart J 138(3), Sept 1999, Part 1, pp. 567-76. PMID: 10467210.
  7. Stein PK, Hagley MT, Cole PA, Domitrovich PP, Kleiger RE, and Rottman JN. Changes in Heart Rate Variability during Normal Pregnancy. Am J Obstet Gynecol 180(4), April 1999, pp. 978-85.
  8. Bilge AR, Stein PK, Domitrovich PP, Gérard PL, Rottman JN, Kleiger RE, Kulbertus HE, Piérard LA. Alternative Methods for Assessing the Ultra-Low Frequency Component of Heart Rate Variability: Application to Clinical Recordings. Intl J of Cardiol 71, 1999, pp. 1-6. PMID: 10522558.
  9. Stein PK, Domitrovich PP, Kleiger RE, Rottman JN. Clinical and Demographic Determinants of HRV in Post-MI Patients: Insights from the Cardiac Arrhythmia Suppression Trial (CAST). Clin Cardiol 23(2), Mar 2000, pp. 187-94. PMID: 10761807.
  10. Stein PK and Domitrovich PP. Detecting OSAHS from Patterns Seen on Heart-Rate Tachograms. Computers in Cardiology 27, 2000, pp. 271-4.
  11. Stein PK, Schmeig RE, Jr., El-Fouly A, Domitrovich P, Buchman TG. Association between Heart Rate Variability Recorded on Post-Operative Day One and Length of Stay in Abdominal Aortic Surgery Patients. Crit Care Med 29(9), Sept 2001, pp. 1738-43. PMID: 11546974.
  12. Hogue CW, Talke P, Stein PK, Richardson C, Domitrovich PP, Sessler DI. Autonomic Nervous System Responses during Sedative Infusions of Dexmedetomidine Anesthesiology 97(3), Sept 2002, pp. 592-8. PMID: 12218525.
  13. Stein PK, Yanez D, Domitrovich PP, Gottdiener JS, Chaves P, Kronmal RA, Rautaharju PM. Heart Rate Variability is Confounded by the Presence of Erratic Sinus Rhythm. Computers in Cardiology 29, 2002, pp. 669-72.
  14. Domitrovich PP, Stein PK. A New Method To Detect Erratic Sinus Rhythm In RR-Interval Files Generated From Holter Recordings. Computers in Cardiology 29, 2002, pp. 665-8
  15. Williams C, Stein PK, Domitrovich PP. Feasibility of a Simple Method for Identifying Sleep Periods from Holter Recordings. Computers in Cardiology 29, 2002, pp. 533-6.
  16. Stein PK, Duntley SP, Domitrovich PP, Nishith P, Carney RM. A Simple Method for Detecting Sleep-Disordered Breathing Using Holter Monitoring. J Cardiovasc Electrophysiol 14(5), May 2003, pp. 467-73. PMID: 12776861.
  17. Nishith P, Duntley SP, Domitrovich PP, Uhles ML, Cook BH, Stein PK. Effect of Cognitive Behavioral Therapy on Heart Rate Variability during REM Sleep in Female Rape Victims Diagnosed with PTSD. J Trauma Stress 16(3), June 2003, pp. 247-50. PMID: 12816336.
  18. Stein PK, Domitrovich PP, Kleiger RE. Including Patients with Diabetes or CABG Decreases the Association Between Heart Rate Variability and Mortality Post-MI. Am Heart J 147(2), Feb 2004, pp. 309-16. PMID: 14760330.
  19. Stein PK, Hui N, Domitrovich PP, Gottdiener JS, Rautaharju PM. Distinguishing Normal and Abnormal HRV Using Graphical and Non-Linear Analyses. Computers in Cardiology 31, 2004, pp. 205-8.
  20. Stein PK, Domitrovich PP, Ambrose K, Lyden A, Fine M, Gracely RH, Clauw DJ. Gender Effects on Heart Rate Variability in Fibromyalgia and Gulf War Illness. Arthritis Rheum 51(5), Oct 2004, 700-8. PMID: 15478168.
  21. Stein PK, Domitrovich PP, Huikuri HV, Kleiger RE, the CAST Investigators. Traditional and Nonlinear Heart Rate Variability are Each Independently Associated with Mortality after Myocardial Infarction. J Cardiovasc Electrophysiol 16(8), Jan 2005, No 1, pp. 13-20. PMID: 15673380.
  22. Carney RM, Blumenthal JA, Freedland KE, Stein PK, Howells WB, Berkman LF, Watkins LL, Czajkowski SM, Hayano J, Domitrovich PP, Jaffe AS. Low Heart Rate Variability and the Effect of Depression on Post-MI Mortality. Arch Intern Med 165(13), July 2005, pp. 1486-91. PMID: 16009863.
  23. Stein PK, Domitrovich PP, Hui N, Rautaharju PM, Gottdiener JS. Sometimes Higher Heart Rate Variability is Not Better Heart Rate Variability: Results of Graphical and Non-Linear Analyses. J Cardiovasc Electrophysiol 16(9), Sep. 2005, pp. 954-9. PMID: 16174015.
  24. Stein PK, Lundequam EJ, Clauw DJ, Freedland KE, Domitrovich PP. Circadian and Ultradian Rhythms in Cardiac Autonomic Modulation. IEEE Eng Med Bio Soc, 28th Ann Int Conf IEEE, 2006, pp. 429-32. PMID: 17946831.
  25. Stein PK, Domitrovich PP, Lundequam EJ, Duntley SP, Freedland KE, Carney RM. Circadian and Ultradian Rhythms in Heart Rate Variability. Biomed Tech 51(4) (Berl), 2006, pp. 155-8. PMID: 17061928.
  26. Carney RM, Howells WB, Blumenthal JA, Freedland KE, Stein PK, Berkman LF, Watkins LL, Czajkowski SM, Steinmeyer B, Hayano J, Domitrovich PP, Burg MM, Jaffee AS. Heart Rate Turbulence, Depression, and Survival after Acute Myocardial Infarction. Psychosom Med 69(1), Jan 2007, pp. 4-9. (Epub 2006 Dec 13.) PMID: 17167127.
  27. Stein PK, Tereschenko L, Domitrovich PP, Perez A, Deedwania P. Diastolic Dysfunction and Autonomic Abnormalities in Patients with Systolic Heart Failure. Eur J Heart Fail 9(4), April 2007, pp. 364-9. (Epub 2006 Nov 22.) PMID: 17123863.
  28. Stein PK, Barzilay JI, Domitrovich PP, Chaves PM, Gottdiener JS, Heckbert SR, Kronmal RA. The Relationship of Heart Rate and Heart Rate Variability to Non-Diabetic Fasting Glucose Levels and the Metabolic Syndrome: The Cardiovascular Health Study. Diabet Med 24(8), Aug 2007, pp. 855-63. (Epub 2007 Apr 2.) PMID: 17403115.
  29. Domitrovich PP. A Graphical User Interface for the Study of Heart Rate Variability. Computers in Cardiology 34, 2007, pp. 469-72.
  30. Stein PK, Cohen RJ, Devlin NM, Lundequam EM, Domitrovich PP, Gottdiener JM, Redline S. Cyclic Variation of Heart Rate During Sleep in Four Recordings of Up to 13 Years in Elderly Adults. Computers in Cardiology 34, 2007, pp. 33-5.
  31. Stein PK, Cohen RJ, Mau B, Domitrovich PP, Gottdiener JM, Redline S. A Comparison of Holter- and Polysomnogram-Based Detection of Bed and Wake Times. Computers in Cardiology 34, 2007, pp. 697-700.
  32. Stein PK, Lundequam EJ, Oliveira LP, Clauw DJ, Freedland KE, Carney RM, Domitrovich PP. Cardiac Autonomic Modulation. Analyzing Circadian and Ultradian Rhythms. IEEE Eng Med Biol Mag. 2007 Nov-Dec;26(6):14-8. BMID: 18189081.
  33. Watanabe MA, Bhalodia R, Lundequam EJ, Domitrovich PP, Steinmeyer BC, Stein PK, Freedland KE, Duntley SP, Carney RM. Increased Ventricular Premature Contraction Frequency During REM Sleep in Patients with Coronary Artery Disease and Obstructive Sleep Apnea. Ind Pacing and Electrophys J. 2008;8(4):258-67. PMCID: PMC2572026.
  34. Stein PK, Barzilay JI, Chaves PHM; Traber J, Domitrovich PP, Heckbert SR, Gottdiener JS. Higher Levels of Inflammation Factors and Greater Insulin Resistance are Independently Associated with Higher Heart Rate and Lower Heart Rate Variability in Normoglycemic Older Individuals: The Cardiovascular Health Study. J Am Geriatric Soc. 2008;56(2):315-21. PMID: 18179502.
  35. Stein PK, Le Q, Domitrovich PP. Development of More Erratic Heart Rate Patterns is Associated with Mortality Post-Myocardial Infarction. J Electrocard. 2008;41(2):110-5. PMCID: PMC2323590.
  36. Hoyer D, Friedrich H, Stein PK, Domitrovich PP, Hoyer H, Faldu C, Buchman TG. Autonomic Information Flow Improves Prognostic Value of Heart Rate Patterns After Abdominal Aortic Surgery. J Crit Care. 2008;23(2):255-62. PMID: 18538221.
  37. Carney RM, Steinmeyer B, Freedland KE, Blumenthal JA, Stein PK, Steinhoff WA, Howells WB, Berkman LF, Watkins LL, Czajkowski SM, Domitrovich PP, Burg MM, Hayano J, Jaffe AS. Nighttime Heart Rate and Survival in Depressed Patients Post Acute Myocardial Infarction. Psychosomatic Med. 2008;70(7):757-63. PMID: 18725430.
  38. Stein PK, Sanghavi D, Domitrovich PP, Mackey RA, Deedwania P. Ambulatory ECG-based T-wave Alternans Predicts Sudden Cardiac Death in High-Risk Post-MI Patients with Left Ventricular Dysfunction in the EPHESUS Study. J Cardiovasc Electrophys, 2008;19(10):1037-42. PMID: 18554193.
  39. Stein PK, Barzilay JI, Chaves PHM, Mistretta SQ, Domitrovich PP, Gottdiener JS, Rich MW, Kleiger RE. Novel Measures of Heart Rate Variability Predict Cardiovascular Mortality in Older Adults Independent of Traditional Cardiovascular Risk Factors: The Cardiovascular Health Study (CHS). J Cardiovasc Electrophys. 2008;19(11):1169-74. PMID: 18631274.
  40. Stein PK, Barzilay JI, Chaves PHM, Domitrovich PP, Gottdiener JS. Heart Rate Variability and Its Changes Over 5 Years in Older Adults. Age and Ageing. 2009;38(2):212-8. PMCID: PMC2724889.
  41. Tereshchenko LG, Fetics BJ, Domitrovich PP, Lindsay BD, Berger RD. Prediction of Ventricular Tachyarrhythmias by Intracardiac Repolarization Variability Analysis. Circulation: Arrhyth and Electrophys. 2009;2(3):276-84. PMID: 19808478.

PUBLISHED ABSTRACTS:

  1. Stein PK, Domitrovich PP, Freedland KE, Skala JA, Carney RM, Kleiger RE, Rottman JN. Heart Rate Variability Indices during Hospitalization for Acute CHF and One-Year Risk of All-Cause Mortality. J Heart Failure 4, 1997, Abs., p. 33.
  2. Hogue Jr. CW, Domitrovich PP, Stein PK, Despotis GD, and Rottman JN. Atrial Fibrillation Risk after CABG is Associated with Altered Heart Rate Dynamics. Anesthesiology 87, 1997, Abs., p. A129.
  3. Stein PK, Domitrovich PP, Kleiger RE, Rottman JN. Decreased Baseline Heart Rate Variability Predicts Mortality in CAST. Circulation 96(8), Oct. 1997, Suppl. I, p. 653.
  4. Stein PK, Domitrovich PP, Kleiger RE, Rottman JN. Heart Rate Variability After Treatment with Type IC Antiarrhythmics Predicts Mortality in CAST. Circulation 96(8), Oct 1997, Suppl. I, p. 716.
  5. Kleiger RE, Stein PK, Domitrovich PP, Rottman JN. Association between Changes in HRV from Baseline to Suppression: Holters and Mortality in CAST. PACE (NASPE) 21, April 1998, Part II, p. 821.
  6. Kleiger RE, Stein PK, Domitrovich PP, Rottman JN. Effect of Treatment with Type Ic Antiarrhythmics on Heart Rate Variability in CAST. PACE (NASPE) 21, April 1998, Part II, p. 822.
  7. Stein PK, Domitrovich PP, Kleiger RE, Rottman JN. Baseline Heart Rate Variability after CABG or PTCA in CAST. Annals of Noninvasive Electrocard 3(3), 1998, Abs., p. S45.
  8. Kleiger RE, Stein PK, Domitrovich PP, Rottman JN. CABG and Diabetes Confound HRV Prediction of Mortality Post-MI. PACE (NASPE) 22, April 1999, Part II, p. 790.
  9. Stein PK, Domitrovich PP, Shectman KB, Kleiger RE, Rottman JN. Increased Short-term RR-Interval Variability Associated with Abnormal Spectral Patterns Predicts Mortality in the Cardiac Arrhythmia Suppression Trial. Circulation 100(18), Nov 1999, Suppl. I, p. 158.
  10. Stein PK, Schmeig RE, El-Foley A, Domitrovich PP, and Buchman TG. Heart Rate Variability and Length of Stay in Abdominal Aortic Surgery Patients. Soc Crit Care Med. Symposium, 2000, Abs.
  11. Carney RM, Stein PK, Freedland KE, Domitrovich PP, Duntley SP. Sleep Apnea and Depression after Myocardial Infarction. J Psychosom Med 62(1), 2000, Abs., p. 110.
  12. Domitrovich PP, Rogers, JG, Ewald GA, Stein PK, Rottman JN, Kleiger RE. Acute Cardiac Allograft Rejection Detection Using Electrocardiogram-Based Analyses. Transplantation 60(8), 2000, Suppl., p. S230.
  13. Domitrovich PP, Stein PK, Freedland KE, Skala JA, Rottman JN, Kleiger RE. Differences in Heart Rate Complexity among Post-MI and CHF Patients and Normal Controls. Circulation 102(18), Oct 2000, Suppl. II, p. 494.
  14. Stein PK, Domitrovich PP, Makikallio TH, Huikuri HV, Kleiger RE. Nonlinear but not Time-Domain Indices of Heart Rate Variability Predict Mortality in the Cardiac Arrhythmia Suppression Trial (CAST). Circulation 102(18), Oct 2000, Suppl. II, p. 493.
  15. Stein PK, Duntley SP, Domitrovich PP, Stuckey M, Uhles ML, Nishith P, Carney RM. A Simple Method for Detecting Possible Obstructive Sleep-Apnea Hypopnea Syndrome from Holter Recordings. Internat Symposium on Sleep and Autonomous Function. Marburg, Germany. Somnology 5(2), 2001, Suppl.
  16. Stein PK, Duntley SP, Domitrovich PP, Young M, Uhles ML, Nishith P, Carney RM. Patients Undergoing Routine Holter Monitoring Can Simultaneously Be Screened for Obstructive Sleep Apnea-Hypopnea Syndrome Using a Simple Technique. Circulation 104(17), Oct 2001, Suppl. II, p. 602.
  17. Gottdiener JS, Stein PK, Domitrovich PP, Kitzam DW. Time and Frequency Domain and Non-Linear Heart Rate Variability in Diastolic and Systolic Congestive Heart Failure of the Elderly: The Cardiovascular Health Study. Circulation 106(19), Nov 2002, Suppl. II, p. 648.
  18. Nishith P, Duntley SP, Smith B, Uhles M, Domitrovich PP, Stein PK, Morissey M. Sleep Functioning in Treatment-Seeking Female Rape Victims Diagnosed with PTSD. Sleep 26, Nov 2003, Abs. Suppl., p. A383.
  19. Stein PK, Tereschenko L, Perez A, Domitrovich PP, Deedwania P. Diabetic Patients with Heart Failure Have Great Derangement of Cardiac Autonomic Function as Assessed by Heart Rate Variability Parameters. Circulation 110(17), Oct 2004, Suppl. III, p. 456.
  20. Stein PK, Domitrovich PP, Gottdiener JS, Rautaharyu PM. The Combination of Short-Term Fractal Scaling Exponent and Decreased High Frequency Power Provides a Powerful Independent Predictor of Mortality in the Elderly. Circulation 110(17), Oct 2004, Suppl. III, p. 457.
  21. Tereschenko L, Stein PK, Perez A, Domitrovich PP, Deedwania P. Severe Diastolic Dysfunction is Associated with Greater Autonomic Function Abnormalities as Assessed by Heart Rate Variability in Patients with Stable Systolic Heart Failure. Circulation 110(17), Oct 2004, Suppl. III, p. 634.
  22. Domitrovich PP, Pigeon WR, Stein PK, Perls ML. Heart Rate Variability in Patients with Insomnia and Good Sleeper Controls. Sleep 27, 2004, Abs. Suppl., p. A269.
  23. Stein PK, Sootedehnia N, Domitrovich PP, Larson E, Siscovick D, Gottdiener JS, Rautaharyu PM. Abnormal Heart Rate Variability is Significantly Associated with Sudden Cardiac Death Among the Community-Dwelling Elderly. J Am Col Card 45, Feb 2005, Abs. Suppl., p. 126A.
  24. Stein PK, Barzilay JI, Gottdiener JS, Domitrovich PP, Rautaharju PM, Heckbert SR, Kronmal RA. Heart Rate Variability, Glucose Intolerance and the Metabolic Syndrome in the Elderly: The Cardiovascular Health Study. Circulation 112(17), Oct 2005, Suppl. II, p. 827.
  25. Gottdiener JS, Stein PK, Domitrovich PP, Rautaharju PM. Association of Heart Rate Variability with Heart Failure Symptoms in the Elderly: The Cardiovascular Health Study. Circulation 112(17), Oct 2005, Suppl. II, p. 774.
  26. Stein PK, Lundequam EJ, Howells WB, Duntley SP, Domitrovich PP, Freedland KE, Carney RM. Characteristics of Heart Rate Changes in Response to Sleep-Disordered Breathing Among Cardiac Patients. J Am Col Card 47, Feb 2006, Abs. Suppl., p. 27A.
  27. Barzilay JI, Stein PK, Gottdiener JS, Domitrovich PP, Rautaharju PM, Heckbert SR, Kronmal RA. Inflammation is Independently Associated with Diminished Heart Rate Variability in Glucose Intolerant Older Adults: The Cardiovascular Health Study. Meeting of the 3rd Int. Conf. on Insulin Resistance, Nov 2005, San Francisco, CA, Abs. A-292.
  28. Stein PK, Barzilay JI, Domitrovich PP, Chaves PH, Gottdiener JS, Rich MW, Rautaharju PM, Kleiger RE, Kronmal RA. Abnormal Heart Rate Variability is a Powerful Independent Predictor of Long-Term Cardiovascular Mortality in the Elderly: The Cardiovascular Health Study. J Am Col Card 47, Feb 2006, Abs. Suppl., p. 29A.
  29. Bhalodia R, Domitrovich PP, Carney RM, Stein PK, Watanabe MA. Patients with Severe Sleep Apnea Have Increased and Altered Sleep Stage Distribution of Ventricular Premature Contraction Frequency. Circulation 114(18), Oct 2006, Suppl. II, p. 472.
  30. Stein PK, Lundequam EJ, Domitrovich PP, Yonamine AJ, Redline S. Cyclic Heart Rate Patterns are Variability Associated with REM and Wake cycles in the Elderly. Sleep 29, 2006, Abs. Suppl., p. A30.
  31. Stein PK, Lundequam EJ, Howells WB, Duntley SP, Domitrovich PP, Freedland KE, Carney RM. Determinants of Heart Rate Accelerations in Response to Sleep-Disordered Breathing Among Cardiac Patients. Sleep 29, 2006, Abs. Suppl., p. A160.
  32. Gallucci MA, Lichtman SW, Wanstall DA, King ML, Pellicone JT, Stein PK, Domitrovich P, De Meersman R. Effects of An Outpatient Pulmonary Rehabilitation Program on Heart Rate Variability and Right Heart Function in Patients With Chronic Obstructive Pulmonary Disease. J Cardiopul Rehab and Prev 26(4), July/Aug 2006, p. 257.
  33. Stein PK, Oliveira L, Domitrovich PP, Lundequam EJ, Redline S. Changes in Nighttime Ultradian Parameters of Heart Rate Over Time in the Elderly. Sleep 30, 2007, Abs. Suppl., p. A59.
  34. Stein PK, Domitrovich PP, Lundequam EJ, Redline S. Decreased Heart Rate Variability from Polysomnography Predicts Mortality in the Elderly. Sleep 30, 2007, Abs. Suppl., p. A110.

PRESENTATIONS:

  1. Domitrovich PP, Müther H. Beyond Hartree-Fock in the Nambu-Jona--Lasinio Model. Meeting of the German Physical Society, Mainz, Germany, Mar 1993.
  2. Domitrovich PP, Rogers, JG, Ewald GA, Stein PK, Rottman JN, and Kleiger RE. Acute Cardiac Allograft Rejection Detection Using Electrocardiogram-Based Analyses. Poster presentation. Transplant 2000, May 2000, Chicago IL, U.S.A.
  3. Domitrovich PP, Stein PK, Freedland KE, Skala JE, Rottman JR, Kleiger RE. Differences in Heart Rate Complexity among Post-MI and CHF Patients and Normal Controls. Oral presentation. Scientific Sessions 2000 of the AHA, Nov 2000, New Orleans, Louisiana, U.S.A.
  4. Domitrovich PP, Stein PK. A New Method to Detect Erratic Sinus Rhythm in RR-Interval Files Generated from Holter Recordings. Computers in Cardiology Conference, Sept 2002, Memphis, Tennessee, U.S.A.
  5. Domitrovich PP. A Graphical User Interface for the Study of Heart Rate Variability. Computers in Cardiology Conference, October 2007, Durham, North Carolina, U.S.A.


Peter P. Domitrovich, Jr., Ph.D.

Mostly Computer Science Skill Matrix:

Skill Cumulative FTE* Experience When** Additional Information
Unix > 17 years @ 40hrs/week 1986-1994; 1996-2008; 2008-2018 Mostly Solaris user; 1986-1991: grad school; unix tutoring
Linux 2 years @ 40hrs/week 2000-2013; 03/2013-07/2017; 2019-2023 Recently, RHEL; Linux sys admin tutoring
Cygwin 3 months @ 40hrs/week 2000-2008; 2015-2023 Ran HRV code often in Cygwin
MS Windows 3 years @ 40hrs/week 1996-2023 Always up-to-date with windows OS’s
Unix system administration 1 year @ 40hrs/week 2000-2008 Solaris 6, 7, 8
C 7 years @ 40hrs/week 1991; 1996-2008; 2008-2018;2019-2023 Unix/C console applications development; c tutoring
C++, C++ GTK2+ 4 years @ 40hrs/week 2000-03/2013; 03/2013-11/2018;2019-2023 Apps; C++ tutoring
FORTRAN 5 years @ 40hrs/week 1986-1994; 2008-2009;2017 Mostly f77, some f90, and f95. 1986-1991: grad school; f95 tutoring
MS Visual Studio MFC/C++ 10 months @ 40hrs/week 2000-2008, 2018; 2019 Windows GUI development
Java/Java Swing/Java FX 2.5 years @ 40hrs/week 2008; 2012-2018;2019-2023 Java game programming; Java ee; maintaining Java Swing code; Java tutoring
Python 1 year @ 40hrs/week 2020-2023; Python research/tutoring
MATLAB 4 months @ 40hrs/week 2005-2008; 2018; 2019-2021 Automation or GUI; MATLAB tutoring
Bash; Ksh; Sh; Csh 1.3 years @ 40hrs/week 2000-2018; 2019 Sys admin and automation; bash tutoring
DOS/DOS COMMAND SHELL 1.4 months @ 40hrs/week 1996-2008 Win admin and older programs
Windows/C WIN32 2 months @ 40hrs/week 1999 Windows GUI Development
MS Office 1 year @ 40hrs/wk 2004-2023 Since 2000
GTK 2.0 2 months @ 40hrs/wk 2014 Linux GUI development
gnuplot 1 month @ 40hrs/wk 1996-2014 Used often for HRV
time series analyses 2.4 years @ 40hrs/wk 1996-2008, 2017 Heart Rate Variability; some signal processing.
mathematics 3 years @ 40hrs/wk 1996-2008; 2009, 2013-2023 Mostly HRV math and signal processing; algebra, calculus, diffyq tutoring
* FTE = Full-Time Equivalent or 40 hours per week. **part-time usually




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Copyright © 2017- Peter Domitrovich, Ph.D. JC-PD LLC. All rights reserved. Written by Peter Domitrovich, Ph.D. .