Hampton University is a historically black university located in Hampton, Virginia, United States. It was founded in 1868 by black and white leaders of the American Missionary Association after the American Civil War to provide education to freedmen. In 1878 it established a program for teaching Native Americans, which lasted until 1923. Wikipedia.
Jethva H.,Hampton University |
Atmospheric Chemistry and Physics | Year: 2011
We provide satellite-based evidence of the spectral dependence of absorption in biomass burning aerosols over South America using near-UV measurements made by the Ozone Monitoring Instrument (OMI) during 2005-2007. In the current near-UV OMI aerosol algorithm (OMAERUV), it is implicitly assumed that the only absorbing component in carbonaceous aerosols is black carbon whose imaginary component of the refractive index is wavelength independent. With this assumption, OMI-derived aerosol optical depth (AOD) is found to be significantly over-estimated compared to that of AERONET at several sites during intense biomass burning events (August-September). Other well-known sources of error affecting the near-UV method of aerosol retrieval do not explain the large observed AOD discrepancies between the satellite and the ground-based observations. A number of studies have revealed strong spectral dependence in carbonaceous aerosol absorption in the near-UV region suggesting the presence of organic carbon in biomass burning generated aerosols. A sensitivity analysis examining the importance of accounting for the presence of wavelength-dependent aerosol absorption in carbonaceous particles in satellite-based remote sensing was carried out in this work. The results convincingly show that the inclusion of spectrally-dependent aerosol absorption in the radiative transfer calculations leads to a more accurate characterization of the atmospheric load of carbonaceous aerosols. The use of a new set of aerosol models assuming wavelength-dependent aerosol absorption in the near-UV region (Absorption Angstrom Exponent λ-2.5 to -3.0) improved the OMAERUV retrieval results by significantly reducing the AOD bias observed when gray aerosols were assumed. In addition, the new retrieval of single-scattering albedo is in better agreement with those of AERONET within the uncertainties (ΔSSA Combining double low line ±0.03). The new colored carbonaceous aerosol model was also found to reproduce the ground-based AOD observations over the biomass burning region of central Africa and northern India. Together with demonstrating a significant improvement in the retrieval of aerosol properties from OMI, the present study highlights the greater sensitivity of the near-UV measurements to the varying spectral aerosol absorption. This capability can be explored further for the use in the identification of the black carbon and organics in the biomass burning aerosols. © 2011 Author(s). Source
Agency: NSF | Branch: Continuing grant | Program: | Phase: HIST BLACK COLLEGES AND UNIV | Award Amount: 1.20M | Year: 2015
The Hampton Partnership for Research & Education in Materials (PREM) is a collaboration between Hampton University and the Brandeis University Materials Research Science & Engineering Center (MRSEC) that includes collaborative research, education, training and outreach activities. Hampton is a primarily undergraduate HBCU with a large representation of women and African-American students. There is a persistent disparity in the rate at which HBCU alumni receive doctorates in STEM compared to their African-American counterparts who obtain their undergraduate degrees at research intensive institutions. The Hampton PREM is committed to further enhancing the quality of undergraduate materials science education and research at Hampton and other HBCUs as a means to reduce the PhD-attainment disparity and ultimately broaden African-American and women participation in the nations STEM workforce. We will develop and implement evidence-based innovative models and approaches to improve the preparation and success of HBCU undergraduates so they pursue materials science-related graduate programs and/or careers. The Hampton PREM will increase the number of Hampton undergraduates who annually pursue doctorates from the 1997-2006 rate of less than 2 doctorates per 100 bachelors to the level of 4.2 doctorates per 100 bachelors over the next 10 years. The proposed research will directly engage trainees from high school students to post-doctoral fellows in cutting-edge materials research and result in these trainees being co-authors on publications and presenters at research conferences.
The research component of the Hampton-Brandeis PREM includes three primary research projects which serve as the central unifying activities for the education, training and outreach components. The three research projects are: (1) examination of the dynamics of polyelectrolytes at the surface and within nanoscale polymer thin films fabricated using layer-by-layer technique and the create novel hybrid colloidal rod-polyelectrolyte multilayer drug delivery systems, (2) the fabrication of drug-delivery micelle containing light-sensitive amphiphilic block copolymers , and (3) a research project to be added via a PREM Pilot Project Program which will provided an exciting opportunity to nurture and cultivate new materials science research faculty at Hampton University. Particular emphasis will be placed on the recruitment of underrepresented minority and/or women early career faculty at Hampton University. Each research project requires substantial collaboration between the Hampton PREM research teams and the Brandeis MRSEC, specifically leveraging its strengths in microfluidics and high-resolution single-molecule fluorescence (SMF) microscopy. The experiments associated with each project will be undertaken by a PREM Research Unit, which is a team of materials science researchers that spans the education and training continuum (High School, undergraduate student, graduate student and Path-to-Professorship post-doctoral fellow and PREM Faculty).
Agency: NSF | Branch: Standard Grant | Program: | Phase: HIST BLACK COLLEGES AND UNIV | Award Amount: 255.73K | Year: 2015
The Historically Black Colleges and Universities Undergraduate Program has identified STEM teacher preparation as one of its priorities and is committed to funding innovative models to support STEM teacher preparation and professional development. With support from the National Science Foundation, the professional development program at Hampton University will implement comprehensive strategies designed to transform STEM teaching and learning in an effort to broaden the participation of underrepresented groups in STEM fields. The one-year pilot study, designed to assist high school science teachers with developing inquiry-based learning activities, will impact a large population of minority students and provide opportunities for collaboration and career advancement for teachers. This project has the potential to be a model for increasing the number of minority students pursuing STEM degree programs and careers.
The goal of this project is to enhance the abilities of teachers to provide inquiry-based learning activities for their students by: 1) augmenting curriculum offerings to increase teachers inventory of teaching activities, materials and tools; 2) increasing teachers knowledge of STEM education; and 3) establishing collaborative networks with HU professors. It is expected that this project will enhance the teachers content knowledge and expose them and their students to new concepts using materials related to their lives, history and culture. The inquiry-based activities manual, a product of this program, will be disseminated widely and thus benefit a large population.
Agency: NSF | Branch: Continuing grant | Program: | Phase: NUCLEAR THEORY | Award Amount: 80.79K | Year: 2016
The understanding of the strong interactions, the force that determines the structure of atomic nuclei, is one of the most challenging problems in the Standard Model of particle physics, which describes the number and properties of all the elementary particles. The fundamental theory of the strong interactions, based on the theory of quarks and gluons known as Quantum Chromodynamics (QCD), has a very complex dynamics which gives rise to the rich properties of hadrons (baryons, including protons and neutrons, and mesons and their excitations) and also to the complexity observed in nuclear interactions and structure. The challenges are therefore many and very complex. Those challenges require a variety of experimental efforts, as well as theoretical efforts. In this context, this project will further develop the connection between the fundamental theory of QCD and hadronic/nuclear physics. It is expected that tools and methods developed in that context may have a broader domain of applications. The PI is a joint appointee in the Theory Group at Jefferson Lab, providing him with the opportunity to focus on Jefferson Lab related physics. An important mission of the project is the education and training at Hampton University of graduate and undergraduate students. An additional broader impact of the project will be the PIs interaction with scientists involved in Jefferson Lab experiments.
This project focuses on low and intermediate energy strong interactions in single hadron and few nucleon problems, as well as some fundamental aspects of QCD. The methods used are based in rigorous descriptions of the strong interactions known as effective theories, which are consistent with QCD, and make use of experimental as well as lattice QCD calculations results. The aim is to advance the theoretical knowledge of QCD and the develop theoretical methods. More specifically, in single hadrons, two main lines of research will be pursued: 1) Development and applications of an improved chiral effective theory in baryons, where the combination of the low energy and the 1/Nc expansions (Nc is the number of color degrees of freedom in QCD) is implemented; applications to baryon observables, and in particular to results obtained in Lattice QCD for those observables will be pursued, where in particular the quark mass dependencies accessible through Lattice QCD will be utilized for analyzing issues of convergence of the effective theory. Particular emphasis will be on the applications to baryons involving strangeness, where there are still unresolved issues with the implementation of effective theories due to the relatively large mass of the strange quark. In particular, these studies have impact in for improving the accuracy of the extraction of weak interaction parameters from hyperon decays. 2) Study of excited baryons in the framework of the 1/Nc expansion, which has as main aim the use of that fundamental expansion of QCD to organize the description of baryon resonances; this work has an impact in the analysis of current experimental results on baryon resonances from various facilities, in particular Jefferson Lab, and it can also be applied to the current Lattice QCD calculations of the excited baryon spectrum. In few body physics, the research is focused on applying the combined chiral effective theory and 1/Nc expansion to study the nucleon-nucleon interaction. Among the fundamental aspects of QCD, the project will focus on pure glue-dynamics, studying its fundamental non-perturbative quantities, namely gluon condensate and topological susceptibility using methods of holographic QCD.
Agency: NSF | Branch: Standard Grant | Program: | Phase: S-STEM:SCHLR SCI TECH ENG&MATH | Award Amount: 622.48K | Year: 2015
The Department of Computer Science at Hampton University is creating the Workforce Preparation through Computing Scholarship (We-Prep-CS) Program. It will support up to 20 undergraduate students and up to 18 graduate students. Each student will be awarded up to $10,000 per year based on their financial need. We-Prep-CS will be part of Hampton Universitys continuing efforts to enhance undergraduate education and research in computer science as well as to increase the number of women and African-Americans who pursue advanced degrees and careers in computing. These additional technical workers will help increase the nations economic competitiveness.
The Department of Computer Science at Hampton University has a legacy of contributing to the diversity of the computer science workforce and works closely with a number of industry, academic, and government partners. The proposed project adds to the comprehensive student support services within the department and supports efforts by the Graduate College to ensure the success of students seeking masters degrees in computer science. Scholarships will enable undergraduate and graduate students in computing programs to study full-time, while project activities will engage students academically and socially by providing research and internship opportunities, social cohort building activities, career counseling, and graduate school and workforce preparation. The project will demonstrate a creative, sustainable model for recruiting, engaging, retaining, and graduating historically underrepresented students in computing programs that can guide other institutions in efforts to diversify the STEM workforce. Student support activities developed through the proposed project will be sustainable and scalable, and an integrated evaluation plan will identify which activities should be expanded to meet the needs of all HU Computer Science majors in the future. The project will contribute to the scholarly understanding of STEM student perceptions of financial aid and need. Best practices in preparation, recruitment, retention and engagement strategies will be made available to other institutions via publications, conferences, and workshops. This will assist them with their efforts to broaden participation and to facilitate the progression of students through the pipeline from undergraduate through graduate degree programs in computing majors and/or into technical areas of national need. Data from this project will be collected through extensive evaluation processes and disseminated among the academic and workforce communities, organizations, and conference attendees.