Results 61 to 70 of about 153,461 (336)
String duality and nonsupersymmetric strings [PDF]
In recent work Kachru, Kumar and Silverstein introduced a special class of non-supersymmetric type II string theories in which the cosmological constant vanishes at the first two orders of perturbation theory. Heuristic arguments suggest the cosmological constant may vanish in these theories to all orders in perturbation theory leading to a flat ...
openaire +3 more sources
Ligamentum arteriosum and its telocytes: An ultrastructure description
Abstract Results from my study have shown in 2022 the existence of telocytes (TCs) in mice ligamentum arteriosum (LA). Telocytes (TCs) are unique interstitial or stromal cells of mesodermal origin, defined by long cellular extensions called telopodes (Tps) which form a network, connecting them to surrounding cells. These Tps have dilated portions named
Benedicta Quaye Mensah
wiley +1 more source
We propose a new AdS 3 /CFT 2 duality, in which the bulk string theory has a target spacetime AdS 3 times a squashed three-sphere S ♭ 3 $$ {\mathbbm{S}}_{\flat}^3 $$ , and the dual CFT 2 is a symmetric product of sigma models on ℝ ϕ × S ♭ 3 $$ {\mathbbm ...
Bruno Balthazar+3 more
doaj +1 more source
Unity of Superstring Dualities [PDF]
The effective action for type II string theory compactified on a six torus is $N=8$ supergravity, which is known to have an $E_{7}$ duality symmetry. We show that this is broken by quantum effects to a discrete subgroup, $E_7(\Z)$, which contains both ...
Achúcarro+89 more
core +2 more sources
An introduction to T-duality in string theory [PDF]
Latex file (1 figure), dina4p macro ...
Enrique Alvarez+2 more
openaire +3 more sources
Open-string T-duality and applications to non-geometric backgrounds
We revisit T-duality transformations for the open string via Buscher’s procedure and work-out technical details which have been missing so far in the literature.
Fabrizio Cordonier-Tello+2 more
doaj +1 more source
We discuss duality between Type IIA string theory, eleven-dimensional supergravity, and heterotic string theory in four spacetime dimensions with $N=1$ supersymmetry. We find theories whose infrared limit is trivial at enhanced symmetry points as well as theories with $N=1$ supersymmetry but the field content of $N=4$ theories which flow to the $N=4 ...
David A. Lowe+2 more
openaire +3 more sources
Altruism in death: Attitudes to body and organ donation in Australian students
Abstract Health education, research, and training rely on the altruistic act of body donation for the supply of cadavers. Organ transplantation and research rely on donated organs. Supply of both is limited, with further restrictions in Australia due to requirements for a next‐of‐kin agreement to donation, irrespective of the deceased's pre‐death ...
Rebekah A. Jenkin+2 more
wiley +1 more source
Aspects of duality and confining strings [PDF]
refinement of certain ...
Antti J. Niemi+3 more
openaire +4 more sources
Electric/magnetic duality and its stringy origins [PDF]
We review electric/magnetic duality in $N=4$ (and certain $N=2$) globally supersymmetric gauge theories and show how this duality, which relates strong to weak coupling, follows as a consequence of a string/string duality.
Duff, M. J.
core +3 more sources