Search results for "Clos"
showing 10 items of 1439 documents
Voters’ preferences and electoral systems: the EuroVotePlus experiment in Italy
2016
Motivated by the need to understand voting behaviour under different electoral rules, Laslier et al. (Eur Union Polit, 16(4):601–615, 2015) have conducted an online experiment, the EuroVotePlus experiment, focusing on the effects of the different rules adopted to elect members of the European parliament on voters’ behaviour. The experiment took place in several European countries in the 3 weeks before the 2014 elections for the European Parliament. This paper focuses on the Italian data. Firstly, we show that the behaviour of Italian respondents is consistent with the empirical findings at the European level. Then, we exploit the change from open list to closed list elections implemented in…
The effect of job displacement on couples' fertility decisions
2016
This paper analyzes the effects of job displacement on fertility using Finnish longitudinal employer-employee data (FLEED) matched to birth records. We distinguish between male and female job losses. We focus on couples where one spouse has lost his/her job due to a plant closure or mass layoff and follow them for several years both before and following the job loss. As a comparison group we use similar couples that were not affected by job displacement. In order to examine the possible channels through which job loss affects fertility we examine also the effect on earnings, employment and divorce. The results show that a woman?s own job loss decreases fertility mainly for highly educated w…
Teaching in times of COVID-19: determinants of teachers' educational technology use
2021
We conduct a large and nationwide survey among German teachers to investigate the determinants of teachers' adaption to an increased use of educational technology during the COVID-19 school closure...
The closed-form solution for a family of four-dimension nonlinear MHDS
2008
In this article we propose a method for solving a general class of four-dimension nonlinear modified Hamiltonian dynamic systems in closed form. This method may be used to study several intertemporal optimization problems sharing a common structure, which involves unbounded technological constraints as well as multiple controls and state variables. The method is developed by solving the first-order conditions associated with the planner's problem corresponding to the Lucas [1988. On the mechanics of economic development. Journal of Monetary Economics 22, 3-42] two-sector model of endogenous growth, and allows for explicitly showing the transitional dynamics of the model. Despite the externa…
Elastic scattering of 35Cl and 37Cl on 24Mg
1990
Abstract Elastic scattering of 35Cl and 37Cl on 24Mg was measured at two c.m. energies. Optical model analysis with different potentials are compared. Isotopics effects on absorption are observed. The closure approximation model is found to give a good reproduction of experimental data.
Vacuum induced berry phase: Theory and experimental proposal
2003
We investigate quantum effects in geometric phases arising when a two-level system is interacting with a quantized electromagnetic field. When the system is adiabatically driven along a closed loop in the parameter space, signatures of the field quantization are observable in the geometric phase. We propose a feasible experiment to measure these effects in cavity QED and also analyse the semi-classical limit, recovering the usual Berry phase results.
Nature of the ring-closure process along the rearrangement of octa-1,3,5,7-tetraene to cycloocta-1,3,5-triene from the perspective of the electron lo…
2011
We analyze the behavior of the energy profile of the ring-closure process for the transformation of (3Z,5Z)-octa-1,3,5,7-tetraene 5 to (1Z,3Z,5Z)-cycloocta-1,3,5-triene 6 through a combination of electron localization function (ELF) and catastrophe theory (CT). From this analysis, concepts such as bond breaking/forming processes, formation/annihilation of lone pairs, and other electron pair rearrangements arise naturally through the reaction progress simply in terms of the different ways of pairing up the electrons. A relationship between the topology and the nature of the bond breaking/forming processes along this rearrangement is reported. The different domains of structural stability of …
An Incremental Analysis of the Embryonic Development of the Tobacco Hornworm,Manduca sexta
1987
Summary A timetable of the embryonic development of Manduca sexta has been compiled to serve as a basis for physiological studies. Embryogenesis is complete within 117 hr at 24° C and was analyzed by examining specimens representing 20 stages, i.e. intervals of 5% of the total developmental time. Stage 0 denotes the newly deposited egg. Germ band formation, gastrulation, differentiation of tissues and organs, and blastokinesis are described in detail. By stage 1 (6 hr post-oviposition) the cellular blastoderm is evident and the presumptive serosal and embryonic cells are distinguishable. At stage 2 the germ band has separated from the blastoderm, and by stage 3 it has elongated enormously, …
“Come, Dark-eyed Sleep”: Michael Field and the Performance of the Lyric as a Radical Fantasy
2021
This article seeks to illustrate how the Michael Fields articulate their Sapphic poetry in Long Ago (1889) not only in keeping with their own Shakespearean aspirations and with Robert Browning’s hybrid formula of dramatic lyrics, but also in connection with Jonathan Culler’s theory of the lyric as a performative genre. Much recent scholarship has broken ground in the rediscovery and reappraisal of the Fields’ literary stature, yet the general critical approach has been divisive in addressing their poetry and their verse dramas separately. Some critics have taken heed of how their lyrics in general exhibit an intrinsic dramatic temper, yet no systematic inquiry has discussed how this lyrical…
Radiating and non-radiating sources in elasticity
2018
In this work, we study the inverse source problem of a fixed frequency for the Navier's equation. We investigate that nonradiating external forces. If the support of such a force has a convex or non-convex corner or edge on their boundary, the force must be vanishing there. The vanishing property at corners and edges holds also for sufficiently smooth transmission eigenfunctions in elasticity. The idea originates from the enclosure method: The energy identity and new type exponential solutions for the Navier's equation.