1,663 research outputs found
The Effect of Children on Specialization and Coordination of Partners' Activities
This paper first documents the extent of the specialization in time use in couple families, and the impact of children on this specialization. It then examines the links between the time allocations of partners in couple families, the impact of children on these links, and the effects these factors have on specialization in time use. Children are shown to intensify the specialization in time use in couple families through reducing the apparent complementarity in time allocations of their parents.coordination, gender, time allocations, specialisation
Property—The Effect of the Hersh Decision on the Torrens Act: Getting to the Root of the Problem
Property—The Effect of the Hersh Decision on the Torrens Act: Getting to the Root of the Problem
Probing molecular frame photoionization via laser generated high-order harmonics from aligned molecules
Present photoionization experiments cannot measure molecular frame
photoelectron angular distributions (MFPAD) from the outermost valence
electrons of molecules. We show that details of the MFPAD can be retrieved with
high-order harmonics generated by infrared lasers from aligned molecules. Using
accurately calculated photoionization transition dipole moments for
fixed-in-space molecules, we show that the dependence of the magnitude and
phase of the high-order harmonics on the alignment angle of the molecules
observed in recent experiments can be quantitatively reproduced. This result
provides the needed theoretical basis for ultrafast dynamic chemical imaging
using infrared laser pulses.Comment: 5 pages, 4 figure
Vietnamese Graduate International Student Repatriates: Reverse Adjustment
The purpose of this study is to explore the experiences of Vietnamese
international students who have returned to Vietnam after graduation from
a U.S. higher education institution. The findings suggest that participants
found it harder to readjust to Vietnam than to adjust to the U.S. even though
they had lived most of their lives in Vietnam. Time in the U.S. had changed
them considerably, making it difficult for them to fit back into their old lives
in Vietnam. Most of them did not expect to experience reserve culture shock,
and most had made real efforts to fit back into the Vietnamese environment
and culture
Quantitative Rescattering Theory for high-order harmonic generation from molecules
The Quantitative Rescattering Theory (QRS) for high-order harmonic generation
(HHG) by intense laser pulses is presented. According to the QRS, HHG spectra
can be expressed as a product of a returning electron wave packet and the
photo-recombination differential cross section of the {\em laser-free}
continuum electron back to the initial bound state. We show that the shape of
the returning electron wave packet is determined mostly by the laser only. The
returning electron wave packets can be obtained from the strong-field
approximation or from the solution of the time-dependent Schr\"odinger equation
(TDSE) for a reference atom. The validity of the QRS is carefully examined by
checking against accurate results for both harmonic magnitude and phase from
the solution of the TDSE for atomic targets within the single active electron
approximation. Combining with accurate transition dipoles obtained from
state-of-the-art molecular photoionization calculations, we further show that
available experimental measurements for HHG from partially aligned molecules
can be explained by the QRS. Our results show that quantitative description of
the HHG from aligned molecules has become possible. Since infrared lasers of
pulse durations of a few femtoseconds are easily available in the laboratory,
they may be used for dynamic imaging of a transient molecule with femtosecond
temporal resolutions.Comment: 50 pages, 15 figure
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