Experimental Methods In Cryogenic Spectroscopy: Stark Effect Measurements In Substituted Myoglobin,
2016
University of Wisconsin-Milwaukee
Experimental Methods In Cryogenic Spectroscopy: Stark Effect Measurements In Substituted Myoglobin, Bradley Michael Moran
Theses and Dissertations
Dawning from well-defined tertiary structure, the active regions of enzymatic proteins exist as specifically tailored electrostatic microenvironments capable of facilitating chemical interaction. The specific influence these charge distributions have on ligand binding dynamics, and their impact on specificity, reactivity, and biological functionality, have yet to be fully understood. A quantitative determination of these intrinsic fields would offer insight towards the mechanistic aspects of protein functionality. This work seeks to investigate the internal molecular electric fields that are present at the oxygen binding site of myoglobin.
Experiments are performed at 1 K on samples located within a glassy matrix, using the …
Characterization Of Wy 14,643 And Its Complex With Aldose Reductase,
2016
University of California, Los Angeles
Characterization Of Wy 14,643 And Its Complex With Aldose Reductase, Michael R. Sawaya, Malkhey Verma, Vaishnavi Balendiran, Nigam P. Rath, Duilio Cascio, Ganesaratnam K. Balendiran
Nigam Rath
Stacked Antiaromatic Porphyrins,
2016
Nagoya University
Stacked Antiaromatic Porphyrins, Ryo Nozawa, Hiroko Tanaka, Won-Young Cha, Yongseok Hong, Ichiro Hisaki, Soji Shimizu, Ji-Young Shin, Tim Kowalczyk, Stephan Irle, Dongho Kim, Hiroshi Shinokubo
Chemistry Faculty and Staff Publications
Aromaticity is a key concept in organic chemistry. Even though this concept has already been theoretically extrapolated to three dimensions, it usually still remains restricted to planar molecules in organic chemistry textbooks. Stacking of antiaromatic π-systems has been proposed to induce three-dimensional aromaticity as a result of strong frontier orbital interactions. However, experimental evidence to support this prediction still remains elusive so far. Here we report that close stacking of antiaromatic porphyrins diminishes their inherent antiaromaticity in the solid state as well as in solution. The antiaromatic stacking furthermore allows a delocalization of the π-electrons, which enhances the two-photon absorption …
Letter From The Editor - Hirst,
2016
University of Tennessee - Knoxville
Letter From The Editor - Hirst, Russel K. Hirst
International Journal of Nuclear Security
No abstract provided.
Letter From The Editor - Frahi-Amroun,
2016
University of Sciences and Technology, Algiers
Letter From The Editor - Frahi-Amroun, Akila Frahi-Amroun
International Journal of Nuclear Security
No abstract provided.
Call For Submission,
2016
University of Tennessee, Knoxville
Table Of Contents,
2016
University of Tennessee, Knoxville
Ijns Masthead,
2016
University of Tennessee, Knoxville
Call For The Student Writing Competition,
2016
University of Tennessee, Knoxville
Call For The Student Writing Competition
International Journal of Nuclear Security
No abstract provided.
Security Culture And Its Self-Assessment As Supplementary Tools For Nuclear Security Training,
2016
University of Georgia
Security Culture And Its Self-Assessment As Supplementary Tools For Nuclear Security Training, Igor Khripunov, Sara Z. Kutchesfahani, Khairul -. Khairul -
International Journal of Nuclear Security
Security Culture and its Self-Assessment as Supplementary Tools for Nuclear Security Training
Igor Khripunov, PhD
Center for International Trade and Security, University of Georgia (USA)
Sara Z. Kutchesfahani, PhD
Center for International Trade and Security, University of Georgia (USA)
Khairul Khairul
National Nuclear Energy Agency of Indonesia (BATAN)
Abstract
Nuclear security culture – an emerging and widely recognized practice – serves as a means to support and enhance nuclear security. In fact, many International Atomic Energy Agency (IAEA) publications and the Nuclear Security Summits have highlighted the vital role of nuclear security culture and raised its status to the same …
Letter From The Editor - Choe,
2016
Korea Institute of Nuclear Nonprolieration and Control
Letter From The Editor - Choe, Kwan Kyoo Choe
International Journal of Nuclear Security
No abstract provided.
Dihedral-Angle-Controlled Crossover From Static Hole Delocalization To Dynamic Hopping In Biaryl Cation Radicals,
2016
Marquette University
Dihedral-Angle-Controlled Crossover From Static Hole Delocalization To Dynamic Hopping In Biaryl Cation Radicals, Marat R. Talipov, Tushar S. Navale, Mohammad M. Hossain, Ruchi Shukla, Maxim V. Ivanov, Rajendra Rathore
Chemistry Faculty Research and Publications
In cases of coherent charge-transfer mechanism in biaryl compounds the rates follow a squared cosine trend with varying dihedral angle. Herein we demonstrate using a series of biaryl cation radicals with varying dihedral angles that the hole stabilization shows two different regimes where the mechanism of the hole stabilization switches over from (static) delocalization over both aryl rings to (dynamic) hopping. The experimental data and DFT calculations of biaryls with different dihedral angles unequivocally support that a crossover from delocalization to hopping occurs at a unique dihedral angle where the electronic coupling (Hab) is one half of …
Conformationally Superarmed S-Ethyl Glycosyl Donors As Effective Building Blocks For Chemoselective Oligosaccharide Synthesis In One Pot,
2016
University of Missouri–St. Louis
Conformationally Superarmed S-Ethyl Glycosyl Donors As Effective Building Blocks For Chemoselective Oligosaccharide Synthesis In One Pot, Mithila Bandara, Jagodige Yasomanee, Nigam Rath, Christian Pedersen, Mikael Bols, Alexei Demchenko
Chemistry & Biochemistry Faculty Works
A new series of superarmed glycosyl donors has been investigated. It was demonstrated that the S-ethyl leaving group allows for high reactivity, which is much higher than that of equally equipped S-phenyl glycosyl donors that were previously investigated by our groups. The superarmed S-ethyl glycosyl donors equipped with a 2-O-benzoyl group gave complete β-stereoselectivity. Utility of the new glycosyl donors has been demonstrated in a one-pot one-addition oligosaccharide synthesis with all of the reaction components present from the beginning.
Post-Polymerization Functionalization Of Poly (Ethylene Oxide)–Poly (Β-6-Heptenolactone) Diblock Copolymers To Tune Properties And Self-Assembly,
2016
Western University
Post-Polymerization Functionalization Of Poly (Ethylene Oxide)–Poly (Β-6-Heptenolactone) Diblock Copolymers To Tune Properties And Self-Assembly, Elizabeth Gillies, Brooke M. Raycraft, Jarret Macdonald
Chemistry Publications
Polyester-based amphiphilic block copolymers and their nanoassemblies are of significant interest for a wide range of applications due to the degradability of the polyester block. However, the commonly used polyesters lack functional groups on their backbones, limiting the possibilities to chemically modify these polymers. Described here are new poly(ethylene oxide) (PEO)–poly(β-6-heptenolactone) (PHEL) block copolymers having pendant alkenes at each repeat unit on the PHEL block. First, the self-assembly of these block copolymers in aqueous solution was studied and it was found that they formed solid nanoparticles and vesicles depending on the relative block lengths. Next the alkene moieties of the …
Spray Printing Of Organic Semiconducting Single Crystals,
2016
University of Surrey, UK
Spray Printing Of Organic Semiconducting Single Crystals, Grigorios-Panagiotis Rigas, Marcia M. Payne, John E. Anthony, Peter N. Horton, Fernando A. Castro, Maxim Shkunov
Chemistry Faculty Publications
Single-crystal semiconductors have been at the forefront of scientific interest for more than 70 years, serving as the backbone of electronic devices. Inorganic single crystals are typically grown from a melt using time-consuming and energy-intensive processes. Organic semiconductor single crystals, however, can be grown using solution-based methods at room temperature in air, opening up the possibility of large-scale production of inexpensive electronics targeting applications ranging from field-effect transistors and light-emitting diodes to medical X-ray detectors. Here we demonstrate a low-cost, scalable spray-printing process to fabricate high-quality organic single crystals, based on various semiconducting small molecules on virtually any substrate by …
Promoting Excellence And Demonstrated Competence For Nuclear Security Training,
2016
World Institute for Nuclear Security
Promoting Excellence And Demonstrated Competence For Nuclear Security Training, Daniel Johnson, Brunelle Battistella, Roger Howsley
International Journal of Nuclear Security
The international community has spent considerable time, money, and effort attempting to establish a series of national and regional Centres of Excellence (COEs), also known as Nuclear Security Training and Support Centres (NSSCs). These Centres tend to have a wide variety of objectives, structures, and methods of delivery. Unsurprisingly, no internationally accepted standard exists on how they should operate. The IAEA has produced some excellent guidance (TECDOC 1734), but by virtue of its role cannot provide standards for benchmarking success. Against this backdrop, the World Institute for Nuclear Security (WINS) launched the WINS Academy, an initiative to provide practitioners with …
Nuclear Security And Hrd - Viet Nam’S Effort,
2016
Vietnam Agency for Radiation and Nuclear Safety (VARANS)
Nuclear Security And Hrd - Viet Nam’S Effort, Nu-Hoai-Vi Nguyen, Tan Huu Vuong
International Journal of Nuclear Security
Viet Nam is expanding its nuclear energy program for the application in various areas including industries, agriculture, healthcare, education and research. Recognizing the importance of the nineteen issues laid out in the IAEA document “Milestones in Development of a National Infrastructure for Nuclear Power” [1], Vietnam is considering how to address these issues. This paper describes the establishment of nuclear security infrastructure in Viet Nam and how Viet Nam has addressed one of the nineteen issues, that is human resource development in nuclear energy in general and in nuclear security in particular.
Building The Education And Training Pillar Of The University Of Tennessee’S Institute For Nuclear Security,
2016
University of Tennessee, Knoxville
Building The Education And Training Pillar Of The University Of Tennessee’S Institute For Nuclear Security, Howard Lewis Hall
International Journal of Nuclear Security
The University of Tennessee (UT) developed its first formal and coordinated efforts in nuclear security education in 2008-2009 with its graduate certificate program in nuclear security in the Department of Nuclear Engineering. Building on this work, in 2011 UT established the UT Institute for Nuclear Security (INS) as a collaborative center at the university to expand its curricular impact as well as foster research and partnerships with nearby major governmental facilities engaged in nuclear security work. Oak Ridge National Laboratory (ORNL), the Y-12 National Security Complex (Y-12), and Oak Ridge Associated Universities (ORAU) have joined with UT as charter members …
Nuclear Security Education At Pakistan Institute Of Engineering And Applied Sciences (Pieas): Current Status, Future Prospects And The Lessons Learnt,
2016
Pakistan Institute of Engineering and Applied Sciences
Nuclear Security Education At Pakistan Institute Of Engineering And Applied Sciences (Pieas): Current Status, Future Prospects And The Lessons Learnt, Tariq Majeed Dr.
International Journal of Nuclear Security
In this paper, the details of nuclear security education at Pakistan Institute of Engineering and Applied Sciences (PIEAS) have been discussed. Nuclear Security education was initiated at PIEAS as a sub-specialty of its MS Nuclear Engineering Program in October 2009. Two courses, Nuclear Security (NE-581) and Physical Protection Systems (NE-582) have been offered on regular basis in the 3rd and 4th semesters. To date, 72 students have been graduated with this sub-specialty. The most important lesson learnt is that introduction of nuclear security related courses in nuclear engineering program has opened up new venues of applications of nuclear …
Challenges And Responses For Ensuring Sustainability Of Insa Training Programs,
2016
Korea Institute of Nuclear Nonproliferation and Contol
Challenges And Responses For Ensuring Sustainability Of Insa Training Programs, Jongsook Kim, Hyung-Kyung Lee, Jin-Young Lee
International Journal of Nuclear Security
Providing a systematic training is critical for a state or international perspective to reinforce nuclear security regime nationally or internationally. Korea government recognizes the importance of such challenge, and established the INSA under the KINAC as a Center of Excellence for fostering national nuclear security capacity and contributing international nuclear security governance. INSA started with the government policy that the establishment of sustainable education and training infrastructure and processes is fundamental to the capacity building strategy. After established, INSA has been designing and delivering the domestic and international/regional training programs for the purpose of fostering human resources development in nuclear …
