The decay of the string perturbative vacuum, if triggered by a suitable, duality-breaking dilaton potential, can eeciently proceed via the parametric ampliication of the Wheeler-De Witt wave function in superspace, and can appropriately describe the birth of our Universe as a quantum process of pair production from the vacuum. ||||||||||||||| Essay written for the 2000 Awards of the Gravity Res...

In this essay, we assume that negative mass objects can exist in the extragalactic space and analyze the consequences of their microlensing on light from distant Active Galactic Nuclei. We find that such events have very similar features to some observed Gamma Ray Bursts and use recent satellite data to set an upper bound to the amount of negative mass in the universe. This essay received an “H...

The universe we observe is homogeneous on super-horizon scales, leading to the “cosmic homogeneity problem”. Inflation alleviates this problem but cannot solve it within the realm of conservative extrapolations of classical physics. A probabilistic solution of the problem is possible but is subject to interpretational difficulties. A genuine deterministic solution of the homogeneity problem req...

In many theoretical and applied areas of computational linguistics researchers operate with a notion of linguistic distance or, conversely, linguistic similarity, which is the focus of the present workshop. While many CL areas make frequent use of such notions, it has received little focused attention, an honorable exception being Lebart & Rajman (2000). This workshop brings a number of these s...

The originality of this work leads in tackling text compression using an unsupervised method, based on a deep linguistic analysis, and without resorting on a learning corpus. This work presents a system for dependent tree pruning, while preserving the syntactic coherence and the main informational contents, and led to an operational software, named COLIN. Experiment results show that our compre...

The linguistic criticism approach is one of the most important approaches for those who want to understand honorable hadith Prophet and derive legal ruling from it. book Fath Al-Bari considered a spacious material in sciences language, interpretation, criticism. It set coins mentioned by Al-Hafiz his book, conclusion, it sheds light on findings research.

INTRODUCTION The WestJEM Blog and Podcast Watch presents high quality open-access educational blogs and podcasts in emergency medicine (EM) based on the ongoing ALiEM Approved Instructional Resources (AIR) and AIR-Professional series. Both series critically appraise resources using an objective scoring rubric. This installment of the Blog and Podcast Watch highlights the topic of neurologic eme...

INTRODUCTION The WestJEM Blog and Podcast Watch presents high quality open-access educational blogs and podcasts in emergency medicine (EM) based on the ongoing ALiEM Approved Instructional Resources (AIR) and AIR-Professional series. Both series critically appraise resources using an objective scoring rubric. This installment of the Blog and Podcast Watch highlights the topic of orthopedic eme...