This report presents recent works extending sieve methods, from their classical setting, to new situations characterized by the targeting of sets with exponential growth, arising often from discrete groups like SLm(Z) or sufficiently big subgroups. A recent lecture of Sarnak [54] mentions some of the original motivation (related to the Markov equation and closed geodesics on the modular surface...

W x rhen Kouwenhoven et al' introduced the technique of closed-chest cardiac massage in 1960, they wrote, perhaps somewhat exuberantly, that "anyone, anywhere can now initiate cardiac resuscitative procedures. All that is needed are two hands." It is somehow fitting that in this era of high technology medicine more than 30 years later, a promising advance in resuscitation technique, reported by...

THE BIOCAPSULE AND ASSOCIATED E Q U I P M E N T Compared wit'h the capsule for BioFlight 1 the new .capsule was constmeted from a somewhat heavier aluminum alloy sheet to avoid the use of reinforcing ribs. Two access ports located ,on opposite sides of the capsule were provided to facilitate placement of equipment inside the c~psule. An additional small opening was located near fhe one used for...

We derive D-brane gauge theories for C/ZZn ×ZZn orbifolds with discrete torsion and study the moduli space of a D-brane at a point. We show that, as suggested in previous work, closed string moduli do not fully resolve the singularity, but the resulting space – containing n − 1 conifold singularities – is somewhat surprising. Fractional branes also have unusual properties. We also define an ind...

We de ne robust timed automata, which are timed automata that accept all trajectories \robustly": if a robust timed automaton accepts a trajectory, then it must accept neighboring trajectories also; and if a robust timed automaton rejects a trajectory, then it must reject neighboring trajectories also. We show that the emptiness problem for robust timed automata is still decidable, by modifying...

somewhat inaccessible; the present posting is the original version, with a few subsequent references appended. Abstract A simple unified closed form derivation of the non-linearities of the Einstein, Yang-Mills and spinless (e.g., chiral) meson systems is given. For the first two, the non-linearities are required by locality and consistency; in all cases, they are determined by the conserved cu...

We investigate the unflavored Schur indices of class-$\mathcal{S}$ theories modest rank, and in case $\mathcal{N}=4$ super-Yang-Mills theory with a special unitary gauge group somewhat more general an eye towards their modular properties. find closed-form expressions for many these terms quasimodular forms level 1 or 2, curious feature that they are sums different weights. For type-${\mathfrak{...

Abstract This study presents a practical method for estimating the extreme value distribution of von Mises stress ship structural strength evaluations. The previous methods calculating this require somewhat complicated numerical calculations, such as multi-dimensional integration. In contrast, proposed is based on an asymptotic approximation and can be easily calculated in similar way to conven...

Introduction: We aimed to find out how medical students coped with online learning at home during the COVID 19 pandemic 'lockdown'. Methods: A cross-sectional study was carried from July December 2020, using an SurveyMonkey Questionnaire®, four sections: biodata; environment; habits; open comments; sent 1359 of International Medical University, Malaysia. Responses strongly disagree, somewhat ne...