Results 81 to 90 of about 9,504 (165)

3-dimensional Gravity from the Turaev-Viro Invariant

, 1991
We study the $q$-deformed su(2) spin network as a 3-dimensional quantum gravity model. We show that in the semiclassical continuum limit the Turaev-Viro invariant obtained recently defines naturally regularized path-integral $\grave{\rm a}$ la Ponzano ...
B. Hasslacher, E. Witten, E. Witten, G. Ponzano, H. Ooguri, K. Schulten, K. Schulten, S. M. Lewis, Shun’ya Mizoguchi, T. Regge, Tsukasa Tada   +10 more
core   +1 more source

Incentivos al trabajo y cobertura de riesgos de los programas de pensiones: el caso de Uruguay

Económica, 2015
Estudios previos han demostrado que en países industrializados las provisiones de seguridad social pueden inducir a un retiro temprano del mercado de trabajo.
Anna Caristo
doaj  

Spousal Effect and Timing of Farmers' Early Retirement Decisions [PDF]

The retirement decisions of individuals are strongly influenced by spousal retirement, financial incentives and institutional constraints such as access to early retirement benefits.
Vare, Minna
core   +1 more source

"Buddha's Light" of Cumulative Particles [PDF]

, 2014
We show analytically that in the cumulative particles production off nuclei multiple interactions lead to a glory-like backward focusing effect. Employing the small phase space method we arrived at a characteristic angular dependence of the production ...
Kopeliovich, Vladimir B., Matushko, Galina K., Potashnikova, Irina K.   +2 more
core  

Retirement Flexibility and Portfolio Choice [PDF]

This paper explores the interaction between retirement flexibility and portfolio choice in an overlapping-generations model. We analyse this interaction both in a partial-equilibrium and general-equilibrium setting.
Jan Bonenkamp, Lex Meijdam, Yvonne Adema
core  

Comparative Transcriptome Analysis of Sprouting Capabilities of Sweet Potato Storage Roots with Low and High Virus Levels

Agriculture
Sweet potato (Ipomoea batatas (L.) Lam.) is an important root crop in China, playing significant roles in ensuring national food security and increasing farmers’ income.
Zhicheng Jiang, Taifeng Du, Yuanyuan Zhou, Zhen Qin, Aixian Li, Qingmei Wang, Fuyun Hou   +6 more
doaj   +1 more source

DEMOGRAPHIC AND LABOUR FORCE AGEING – RISK FACTORS FOR THE SOCIAL PROTECTION SYSTEM IN ROMANIA [PDF]

Population ageing is one of the main challenges to the economic and social development in the next decades. This article examines the main implications of demographic and labour force ageing on the future of social protection in Romania.
Maria POENARU
core  

On the ground state energy scaling in quasi-rung-dimerized spin ladders

, 2012
On the basis of periodic boundary conditions we study perturbatively a large N asymptotics (N is the number of rungs) for the ground state energy density and gas parameter of a spin ladder with slightly destroyed rung-dimerization. Exactly rung-dimerized
A.K. Kolezhuk, D.B. Yang, E. Dagotto, G. Barcza, H. Betsuaki, J.C. Bonner, K. Hijii, K.P. Schmidt, M. Müller, M. Reigrotzki, M.T. Batchelor, P. Lecheminant, P.N. Bibikov, P.N. Bibikov, P.N. Bibikov, Petr N. Bibikov, T. Barnes, T. Barnes, Z. Weihong   +18 more
core   +1 more source

Dynamical and point symmetry of the Kondo effect in triangular quantum dot

, 2004
In this work we concentrate on the {\it point symmetry} of triangular triple quantum dot and its interplay with the {\it spin rotation symmetry} in the context of Kondo tunneling through this kind of artificial molecule.
Anderson, Anisimovas, Anisimovas, Borda, Coqblin, Cox, Cronenwett, Goldhaber-Gordon, Haldane, Hofmann, Hofstetter, Kikoin, Kikoin, Konstantin Kikoin, Kuzmenko, Kuzmenko, Molenkamp, Nozieres, Palacios, Partoens, Simmel, Stopa, Tetyana Kuzmenko, Yshai Avishai   +23 more
core   +1 more source

Exponential prefixed polynomial equations [PDF]

, 2013
A prefixed polynomial equation is an equation of the form $P(t_1,\ldots,t_n) = 0$, where $P$ is a polynomial whose variables $t_1,\ldots,t_n$ range over the natural numbers, preceded by quantifiers over some, or all, of its variables.
Nayebi, Aran
core