East Tennessee State University

Lecturer/Adjunct Instructor

Economic and Finance Department
Math and Statistics Department
Technology and Geomatics Department

• Prepared syllabi, chapter outlines for lectures, topics for oral presentation, homework, and tests.
• Tutored and advised students in their career path.
• Maintained effective relationships with students, faculty, and staff.
• Managed different class sizes during semesters. Taught classes on campus and off campus (Johnson City and Bristol).
• Used multimedia class room to teach classes using ITV, streaming, and online. Incorporated the use of smart board for my class notes and posted my lecture notes on D2L.
• Created quizzes and exams on Blackboard and D2L. Used dropbox for students to submit assignments. Created topics for discussion on Blackboard.

East Tennessee State University

Adjunct Faculty

Teaching Decision Science classes at Management and Marketing department.

East Tennessee State University

Research Assistant II

• Assisted in production of siderophore from Rhizobium Leguminosarum IARI 917 organism.
• Purified the collected material using packed column and HPLC.
• Prepared and isolated single-stranded plasmid DNA using gel electrophoresis and performed mutagenesis reactions.

East Tennessee State University

Research Service Manager

• Administered assessments for programs in the nursing college.
• Assisted with writing assessment questions; collected, compiled and reported the findings to the College of Nursing Evaluation Committee.
• Worked with and mentored honor students, MSN, DNP, and PhD students on their thesis/projects. Supported faculty research by performing data collection, statistical data analysis, literature reviews, as well as consulted and assisted with project design.
• Collaborated with external institutions to collect and analyze data to support interdisciplinary research.

Kaplan Test Prep

Instructor

• Taught organic chemistry for Pharmacy College Admission Test students (PCAT).
• Tutored chemistry, biology, and physics. Proctored Medical College Admission Test (MCAT), ACT, SAT, and LSAT for students.

GSK

Senior Scientist Research & Development

Provided analytical support, including stability testing of new pharmaceutical products and release testing of clinical supply production of antibiotics in solid dosage form. Key achievements:
• Performed formulations work, which resulted in invention of once-a-day Augmentin solid dose form.
• Investigated several problems related to different formulations and prepared written reports of findings, which clarified the reason for results differentiations.
• Developed various reliable HPLC separations including an analytical method to test variety of total organic acids in different formulations.
• Developed discriminating dissolution methods for immediate release and modified release dosage forms.
• Authored analytical methods, validation documents, certificates of analysis, SOP's, and equipment procedures effectively.
• Successfully transferred analytical methods from R&D to manufacturing in a timely manner.
• Revamped the chemical storage system bringing it into compliance with cGMP requirements.

Northeast State Community College

Adjunct Faculty

Teaching General Chemistry I and II and Organic Chemistry I and II labs.

King University

Adjunct Instructor

Taught Business Research Methods to BBA students on campus (Bristol), Johnson City, and Kingsport sites.

Nashville State Community College

Adjunct Chemistry Teacher

R. worked at Nashville State Community College as a Adjunct Chemistry Teacher

Characterization of `Schizokinen'; a dihydroxamate-type siderophore produced by Rhizobium leguminosarum IARI 917

Spring

The Rhizobia comprise one of the most important groups of beneficial bacteria, which form nodules on the roots (rarely on the stems) of leguminous plants. They live within the nodules and reduce atmospheric nitrogen to ammonia, which is further assimilated by plants into required nitrogenous compounds. The Rhizobia in return obtain nutrition from the plant. Rhizobia are free-living soil bacteria and have to compete with other microorganisms for the limited available iron in the rhizosphere. In order to acquire iron Rhizobia have been shown to express siderophore-mediated iron transport systems. Rhizobium leguminosarum IARI 917 was investigated for its ability to produce siderophore. It was found to produce a dihydroxamate type siderophore under iron restricted conditions. The siderophore was purified and chemically characterized. The ESMS, MS/MS and NMR analysis indicate the dihydroxamate siderophore to be 'schizokinen', a siderophore reported to be produced by Bacillus megaterium that shares a similar structure to 'rhizobactin 1021' produced by Sinorhizobium meliloti 1021. This is the first report of production of schizokinen by a strain of R. leguminosarum, therefore it was carefully investigated to confirm that it is indeed 'schizokinen' and not a degradation product of 'rhizobactin 1021'. Since ferric-siderophore complexes are transported across the outer membrane (OM) into the periplasm via an OM receptor protein, R. leguminosarum IARI 917 was investigated for the presence of an OM receptor for 'ferric-schizokinen'.

Characterization of `Schizokinen'; a dihydroxamate-type siderophore produced by Rhizobium leguminosarum IARI 917

Spring

The Rhizobia comprise one of the most important groups of beneficial bacteria, which form nodules on the roots (rarely on the stems) of leguminous plants. They live within the nodules and reduce atmospheric nitrogen to ammonia, which is further assimilated by plants into required nitrogenous compounds. The Rhizobia in return obtain nutrition from the plant. Rhizobia are free-living soil bacteria and have to compete with other microorganisms for the limited available iron in the rhizosphere. In order to acquire iron Rhizobia have been shown to express siderophore-mediated iron transport systems. Rhizobium leguminosarum IARI 917 was investigated for its ability to produce siderophore. It was found to produce a dihydroxamate type siderophore under iron restricted conditions. The siderophore was purified and chemically characterized. The ESMS, MS/MS and NMR analysis indicate the dihydroxamate siderophore to be 'schizokinen', a siderophore reported to be produced by Bacillus megaterium that shares a similar structure to 'rhizobactin 1021' produced by Sinorhizobium meliloti 1021. This is the first report of production of schizokinen by a strain of R. leguminosarum, therefore it was carefully investigated to confirm that it is indeed 'schizokinen' and not a degradation product of 'rhizobactin 1021'. Since ferric-siderophore complexes are transported across the outer membrane (OM) into the periplasm via an OM receptor protein, R. leguminosarum IARI 917 was investigated for the presence of an OM receptor for 'ferric-schizokinen'.

Monetary Policy News and the Response of Commercial Paper Market Rates

Social Science Research Network (SSRN)