The syntax of depictives : subjects, modes of judgement and I-L/S-L properties

In this work, I provide an analysis of adjectival depictive constructions which accounts for most of their fundamental properties. First, I focus on the restrictions having to do with the integration of the depictive and the verbal predicate: they are based on aspectual compatibility between the two predicates, which, in turn, will depend on the ability, on the part of the depictive, to make reference to some (sub)event in the event structure of the verbal predicate. Facts not captured by previous approaches in the literature will be straightforwardly accounted for, among them the possibility to have I-L depictive constructions, and the impossibility to combine a depictive with some non-stative verbal predicates. Second, it will be shown that the informational import of the depictive in the sentence can be equivalent to that of the verbal predicate: both can be the primary lexical basis of predication. This is reflected in the sentence in various ways, having to do with aspectual modifiers, and in the properties of the sentential subject. In this connection, we will reconsider the notion of subject, arguing that no subject-predicate relation takes place in the lexical domain of sentences, and hence that the argument the depictive is oriented to, the common argument, cannot be a subject of the depictive. Finally, a minimalist analysis is proposed for the syntax of the construction, in terms of direct syntactic merge of predicative constituents and sidewards (q-to-q) movement for the common argument, from the lexical domain of the depictive to the lexical domain of the verb. As to morphosyntactic properties, a syntactic Double Agree relation is assumed to hold between T/v, as probes, on the one hand, and the common argument and depictive, as simultaneous goals, on the other, which would allow for the deletion of Case features on both goals. The assumed presence of Structural Case on the adjectival depictive will be responsible for the well-known restriction on the orientation of depictives to the sentential subject or object

Flavour Violation in SUSY SU(5) GUT at Large tan beta

We study flavour violation in the minimal SUSY SU(5) GUT assuming all the third generation Yukawa couplings to be due to the renormalizable physics above GUT scale. At large $\tan\beta,$ as suggested by Yukawa unification in SU(5), sizable flavour violation in the left (right) slepton (down squark) sector is induced due to renormalization effects of down type Yukawa couplings between GUT and Planck scales in addition to the flavour violation in the right slepton sector. The new flavour physics contribution to $K-\bar K,$ $B-\bar B$ mixing is small but might be of phenomenological interest in the case of $b\to s\gamma.$ The sign of the latter contribution is the same as the sign of the dominant chargino contribution, thus making the constraints on SUSY scale coming from $b\to s\gamma$ somewhat more restrictive. The most important feature of the considered scenario is the large rate of lepton flavour violation. Given the present experimental constraints, the $\mu\to e\gamma$ and $\mu-e$ conversion branching ratios are above the sensitivity of the planned experiments unless the SUSY scale is pushed above one TeV.Comment: 22 pages, 7 figure

Scalar models for the unification of the dark sector

We review the difficulties of the generalized Chaplygin gas model to fit observational data, due to the tension between background and perturbative tests. We argue that such issues may be circumvented by means of a self-interacting scalar field representation of the model. However, this proposal seems to be successful only if the self-interacting scalar field has a non-canonical form. The latter can be implemented in Rastall's theory of gravity.Comment: Latex file, 8 pages, 3 figures in eps format. To appear in the proceedings of the CosmoSul conference, held in Rio de Janeiro, Brazil, 01-05 august of 201

Superheavy Dark Matter with Discrete Gauge Symmetries

We show that there are discrete gauge symmetries protect naturally heavy X particles from decaying into the ordinary light particles in the supersymmetric standard model. This makes the proposal very attractive that the superheavy X particles constitute a part of the dark matter in the present universe. It is more interesting that there are a class of discrete gauge symmetries which naturally accommodate a long-lived unstable X particle. We find that in some discrete Z_{10} models, for example, a superheavy X particle has lifetime \tau_X \simeq 10^{11}-10^{26} years for its mass M_X \simeq 10^{13}-10^{14} GeV. This long lifetime is guaranteed by the absence of lower dimensional operators (of light particles) couple to the X. We briefly discuss a possible explanation for the recently observed ultra-high-energy cosmic ray events by the decay of this unstable X particle.Comment: 9 pages, Late

Proton Decay and Flavor Violating Thresholds in SO(10) Models

Discovery of neutrino mass has put the spotlight on supersymmetric SO(10) as a natural candidate for grand unification of forces and matter. However, the suppression of proton decay is a major problem in any supersymmetric grand unified models. In this paper we show how to alleviate this problem by simple threshold effect which raises the colored Higgsino masses and the grand unification scale to \gtrsim 10^{17} GeV. There exist only four types of fields arising from different SO(10) representations which can generate this kind of threshold effects. Some of these fields also generate a sizable flavor violation in the quark sector compared to the lepton sector. The b-\tau unification can work in these types of models even for intermediate values of tan\beta.Comment: 5 pages, 1 figur

Cinderella Sovereignty

The Blocher-Gulati critique of the barriers to secession under public international law is insightful and thought provoking, an important contribution in its own right. I wish it had not been eclipsed by the authors\u27 clever and provocative fix: turning sovereignty into a tradable commodity. I suspect that this fix would bring about more suffering than the status quo for two reasons. First, a market for sovereign control is unlikely to be a market in any meaningful sense. Therefore, trading sovereignty would not discipline oppressors. Second, should something like a real market materialize, it could diminish the incentives for states to treat their populations better just as plausibly as it could improve them. Distant empires could find it easier to traffic in oppressed people and territories, which would pass from state to state as their masters lose interest. A class of marginal client statelets would grow, endowed with a poor stepchild of sovereignty, which would leave their people defenseless and voiceless

Cinderella Sovereignty

The Blocher-Gulati critique of the barriers to secession under public international law is insightful and thought provoking, an important contribution in its own right. I wish it had not been eclipsed by the authors\u27 clever and provocative fix: turning sovereignty into a tradable commodity. I suspect that this fix would bring about more suffering than the status quo for two reasons. First, a market for sovereign control is unlikely to be a market in any meaningful sense. Therefore, trading sovereignty would not discipline oppressors. Second, should something like a real market materialize, it could diminish the incentives for states to treat their populations better just as plausibly as it could improve them. Distant empires could find it easier to traffic in oppressed people and territories, which would pass from state to state as their masters lose interest. A class of marginal client statelets would grow, endowed with a poor stepchild of sovereignty, which would leave their people defenseless and voiceless

Inflation and Large Internal Dimensions

We consider some aspects of inflation in models with large internal dimensions. If inflation occurs on a 3D wall after the stabilization of internal dimensions in the models with low unification scale (M ~ 1 TeV), the inflaton field must be extremely light. This problem may disappear In models with intermediate (M ~10^{11} GeV) to high (M ~ 10^{16} GeV) unification scale. However, in all of these cases the wall inflation does not provide a complete solution to the horizon and flatness problems. To solve them, there must be a stage of inflation in the bulk before the compactification of internal dimensions.Comment: 4 pages, revtex, minor modification