Results 11 to 20 of about 485,093 (331)

RESEÑA A LAS GRANDES SEQUÍAS MAYAS. AGUA, VIDA Y MUERTE. RICHARDSON B. GILL

open access: yesRevista Pueblos y Fronteras Digital, 2009
LAS GRANDES SEQUÍAS MAYAS. AGUA, VIDA Y MUERTE. RICHARDSON B.
Alma Amalia González, Fanny López
doaj   +1 more source

Instantons on D-branes [PDF]

open access: yes, 1995
We consider type IIA compactification on $K3$. We show that the instanton subsectors of the worldvolume of $N$ 4-branes wrapped around $K3$ lead to a Hagedorn density of BPS states in accord with heterotic-type IIA duality in 6 dimensions.
Bershadsky   +16 more
core   +2 more sources

PRESENTACIÓN

open access: yesRevista Pueblos y Fronteras Digital, 2009
Como en los números anteriores, estaba previsto que el actual número ocho de nuestra revista Pueblos y Fronteras digital se constituyera a partir de una unidad temática, como un especial sobre una etnia poco estudiada: los garínagu o garífuna, nación ...
Justus Fenner, Jaime Page
doaj   +1 more source

Calabi-Yau Duals for CHL Strings [PDF]

open access: yes, 1997
We find M-theory (Type IIA) duals for compactifications of the 9d CHL string to 5d (4d) on K3 (K3 x S^1). The IIA duals are Calabi-Yau orbifolds with nontrivial RR U(1) backgrounds turned on.Comment: 16 pages ...
Albrecht Klemm   +27 more
core   +2 more sources

Type IIA moduli stabilization [PDF]

open access: yesJournal of High Energy Physics, 2005
We demonstrate that flux compactifications of type IIA string theory can classically stabilize all geometric moduli. For a particular orientifold background, we explicitly construct an infinite family of supersymmetric vacua with all moduli stabilized at arbitrarily large volume, weak coupling, and small negative cosmological constant.
DeWolfe, Oliver   +3 more
openaire   +3 more sources

The Kaluza-Klein Monopole in a Massive IIA Background [PDF]

open access: yes, 1999
We construct the effective action of the KK-monopole in a massive Type IIA background. We follow two approaches. First we construct a massive M-theory KK-monopole from which the IIA monopole is obtained by double dimensional reduction.
Bautier   +32 more
core   +2 more sources

ARTIFICIAL INTELLIGENCE AS AN OBJECT OF MANAGEMENT: A BENEFIT FOR CIVILISATION OR A THREAT TO MANKIND?

open access: yesСоціальна економіка, 2023
The authors of the article analyze the reasons for the rapid development and implementation of artificial intelligence achievements, which opens up great opportunities for solving problems in many industries and is a reliable assistant to people in ...
Iia Chudayeva, Boris Dmitruk
doaj   +1 more source

From Type IIA Black Holes to T-dual Type IIB D-Instantons in N=2, D=4 Supergravity [PDF]

open access: yes, 1997
We discuss the T-duality between the solutions of type IIA versus IIB superstrings compactified on Calabi-Yau threefolds. Within the context of the N=2, D=4 supergravity effective Lagrangian, the T-duality transformation is equivalently described by the ...
D Supergravity   +6 more
core   +3 more sources

Renewable Energy Investment Incentives: The Approach of International Investment Agreements [PDF]

open access: yesIranian Journal of International and Comparative Law
Today the world is tackling climate change and simultaneously needs to overcome growing energy security challenges. The transition to renewable energy is known as the key strategy for reducing carbon emissions and ensuring energy security.
Xuming Qian, Mohammad Akefi Ghaziani
doaj   +1 more source

Complete Characterization of Functions Satisfying the Conditions of Arrow's Theorem [PDF]

open access: yes, 2011
Arrow's theorem implies that a social choice function satisfying Transitivity, the Pareto Principle (Unanimity) and Independence of Irrelevant Alternatives (IIA) must be dictatorial.
Mossel, Elchanan, Tamuz, Omer
core   +3 more sources

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