A5088802060- Advanced Chemical Physics Studies
- Photochemistry and Electron Transfer Studies
- Spectroscopy and Quantum Chemical Studies
- Atmospheric chemistry and aerosols
- Mass Spectrometry Techniques and Applications
- Spectroscopy and Laser Applications
- Atomic and Molecular Physics
- Motivation and Self-Concept in Sports
- IPv6, Mobility, Handover, Networks, Security
- Plant and animal studies
- Rural development and sustainability
- Molecular Junctions and Nanostructures
- Mobile Agent-Based Network Management
- Chinese history and philosophy
- Laser-Matter Interactions and Applications
- Machine Learning in Materials Science
- Rhetoric and Communication Studies
- Advanced Differential Equations and Dynamical Systems
- Environmental Philosophy and Ethics
- DNA and Nucleic Acid Chemistry
- Historical Geography and Geographical Thought
- Migration and Labor Dynamics
- Advanced Optical Network Technologies
- Fluid Dynamics and Mixing
- Molecular Spectroscopy and Structure
Temple University
2010-2023
University of Oslo
2023
University of Leicester
2017-2020
Christopher Newport University
2015-2020
University of Memphis
2019-2020
Loughborough University
2019
Central Michigan University
2017
California University of Pennsylvania
1998-2014
Texas A&M University
1996-2013
University of Pennsylvania
2009-2011
Zero electron kinetic energy threshold photoelectron spectroscopy is applied to jet cooled aniline and the van der Waals molecules aniline–Ar, aniline–(Ar)2, aniline–CH4. The monomer cation spectrum assigned more precise values of vibrational frequencies are determined. spectra complexes reveal significant vibronic activity indicative a change in complex geometry upon ionization. binding ionization obtained from determination potentials. For first time zero used probe predissociation on S1...
An active network is a infrastructure which programmable on per-user or even per-packet basis. Increasing the flexibility of such infrastructures invites new security risks. Coping with these risks represents most fundamental contribution research. The concerns can be divided into those affect as whole and individual elements. It clear that element problems must solved first, since integrity network-level solutions will based trust in In this article we describe architecture implementation...
We report the observation of power law dynamics on nanosecond to microsecond timescales in fluorescence decay from semiconductor nanocrystals and draw a comparison between this behavior blinking single nanocrystals. The link is supported by lifetime data measured simultaneously same nanocrystal. Our results reveal that coefficient changes little over nine decades time 10nsto10s, contrast with predictions some diffusion based models behavior.
Laser-plasma wakefield-based electron accelerators are expected to deliver ultrashort bunches with unprecedented peak currents. However, their actual pulse duration has never been directly measured in a single-shot experiment. We present measurements of the such by means THz time-domain interferometry. With data obtained using 0.5 J, 45 fs, 800 nm laser and ZnTe-based electro-optical setup, we demonstrate laser-accelerated, quasimonoenergetic [best fit 32 fs (FWHM) 90% upper confidence level...
Studies are performed which measure the lifetime of very high lying molecular Rydberg states play a central role in resolution threshold ionization spectroscopy. The systems investigated styrene, phenol, and phenanthrene as well atomic iron system for comparison. It is shown that lifetimes highest levels determined not by intramolecular nonradiative processes but intermolecular Rydberg–ion or Rydberg–Rydberg interactions. Under low fluence laser excitation, observed to have greater than 25...
Exposure of cells to protein tyrosine phosphatase (PTP) inhibitors causes an increase in the phosphotyrosine content many cellular proteins. However, level at which primary signaling event is affected still unclear. We show that Jaks are activated by phosphorylation briefly exposed PTP inhibitor pervanadate (PV), resulting and functional activation Stat6 (in addition other Stats). Mutant cell lines lack Jak1 activity fail support PV-mediated [or interleukin 4 (IL-4)-dependent] but can be...
A new technique is presented for measuring vibrational dynamics in excited electronic states. vibronic state prepared by a picosecond laser pump pulse. This then probed monitoring transitions to states of the ion delayable probe The cross section specific gives information about time evolution initially intermediate state. demonstrated several S1 fluorene.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfrared and Raman Studies of Mixed Cyanide-Halide Complexes Trivalent GoldJ. Michael Smith, Llewellyn H. Jones, I. K. Kressin, R. A. PennemanCite this: Inorg. Chem. 1965, 4, 3, 369–372Publication Date (Print):March 1, 1965Publication History Published online1 May 2002Published inissue 1 March 1965https://pubs.acs.org/doi/10.1021/ic50025a024https://doi.org/10.1021/ic50025a024research-articleACS PublicationsRequest reuse permissionsArticle...
Can a molecule be efficiently activated with large amount of energy in single collision fast atom? If so, this type will greatly affect molecular reactivity and equilibrium systems where abundant hot atoms exist. Conventional expectation transfer (ET) is that the probability decreases exponentially transferred, hence what we label "super transfer" negligible. We show, however, collisions between an atom for which chemical reactions may occur, such as those translationally H ambient acetylene...
This paper presents a series of studies that progresses the development and validation Parent-Initiated Motivational Climate in Individual Sport Competition Questionnaire (MCISCQ-Parent). Study 1 examined face content validity an initial pool 26 items based on principles achievement goal theory prior research. In 2, data from adolescent sample individual sport athletes was subjected to exploratory factor analysis (EFA) pertaining perceived task ego involving characteristics fathers mothers...
Journal Article The Geographical Imagination in America, 1880–1950 Get access 1880–1950. By Schulten Susan. (Chicago: University of Chicago Press, 2001. x, 319 pp. $40.00, isbn0-226-74055-2.) Jonathan M. Smith Texas A&M UniversityCollege Station, Search for other works by this author on: Oxford Academic Google Scholar American History, Volume 89, Issue 3, December 2002, Pages 1074–1075, https://doi.org/10.2307/3092420 Published: 01 2002
Intramolecular vibrational energy redistribution (IVR) and predissociation (VP) are measured for a number of vibronic states in the S1 electronic state aniline-CH4 complex. The detailed dynamics monitored using picosecond threshold photoelectron spectroscopy which is shown to be sensitive probe van der Waals molecule dynamics. For lowest accessed, 6a10 6a10+24 cm−1 bands, both IVR VP observed their rates independently determined. At higher excess energy, becomes rate limiting step cannot...
Motivated by the possibility that cyano-containing hydrocarbons may act as photolytic sources for HCN and HNC in astrophysical environments, we conducted a combined experimental theoretical investigation of 193 nm photolysis cyano-ester, methyl cyanoformate (MCF). Experimentally, nanosecond time-resolved infrared emission spectroscopy was used to detect from nascent products generated reaction. The spectra were analyzed using recently developed spectral reconstruction analysis, which...
Raman and infrared spectra of aqueous solid KAu(CN)4 have been studied. Ten the 16 fundamental vibrations Au(CN)4— ions assigned. The stretching force constants some bending calculated. high CN constant (17.4 mdyn/Å) MC (3.0 indicate strong metal—ligand sigma bonding weak pi bonding, as expected because effective nuclear kernel charge on gold.
The experimentally measured cross section for super energy transfer collisions between a hyperthermal H atom and an ambient molecule is presented here. This measurement substantiates emerging mechanism with significant section, whereby major fraction of atomic translational converted into molecular vibrational through transient collision-induced reactive complex. Specifically, using nanosecond time-resolved infrared emission spectroscopy, it revealed that hydrogen atoms (with 59 kcal/mol...
Picosecond pump–probe threshold photoelectron spectroscopy was used to investigate the vibrational dynamics of four bands in S1 state p-difluorobenzene range 2000 2900 cm−1. In this energy region vibrations exhibited intermediate case restricted as evidenced by observed quantum beats well irreversible statistical limit decay. More complete coverage prohibited wavelength restrictions on both pump and probe laser wavelengths required experiment. The redistribution is contrast very rapid decays...