I review how traditional grand unified theories, which require adjoint (or higher representation) Higgs fields for breaking to the standard model, can be contained within string theory. The status (as of January 1996) of the search for stringy free fermionic three generation SO(10) SUSY–GUT models is discussed. Progress in free fermionic classification of both SO(10)2 charged and uncharged embe...

La consideración de los procesos emocionales del aprendizaje constituye una línea didáctica en auge, al igual que la edición libros ilustrados no-ficción para lectores infantiles o juveniles. “nueva no-ficción” muestra hibridación géneros, estructuras textuales y códigos semánticos. Su cuidado formato, recursos interactivos abundantes ilustraciones añaden componentes estéticos lúdicos a lectura...

Total factor productivity represents a dimension of output that cannot be attributed to factors production; it is unique the firm, and central its competitiveness. We posit ownership structure plays key role in productivity. However, has an effect on which changes with firm’s age. Ownership optimal for new firms may not older firms. here consider impact as defined by shares individuals’ versus ...

By focusing on the tacit and explicit characteristics of informal formal institutional distances, this study investigates competitive advantage foreign subsidiary firms from developed countries emerging markets operating in Latin America. Following recent research distances international management, measured size direction computed based world governance indicators World Bank, whereas are calcu...

Introduction: When using a planetary surface’s impact cratering record to investigate the object’s geologic history, it is important to understand the sources of impactors generating the unmodified record. For Saturn’s satellites, this implies that impactor populations pertinent to the Saturn system should be characterized in order to acceptably interpret cratering records modified by geologic ...

In this paper, we present a framework for representing and evaluating integrations between ontological and linguistic resources, which originates and improves previous research reported in (Pazienza & Stellato, 2006b; Pazienza, Sguera, & Stellato, 2007) and articulates into two results: first, a set of coordinated RDF vocabularies providing descriptors for representing linguistic resources and ...

We discuss elementary entwiners that cross-weave the variables of certain integrable models: Liouville, sine-Gordon, and sinh-Gordon field theories in two-dimensional spacetime, and their quantum mechanical reductions. First we define a complex time parameter that varies from one energy-shell to another. Then we explain how field propagators can be simply expressed in terms of elementary functi...