gp(X) = {x1 x2 2 . . . x n n | xi ∈ X, i = ±1} Définition 1.1. Soit X un ensemble. Un produit (ou suite) w = x1 x2 2 . . . x n n , | xi ∈ X, i = ±1 s’appelle un X–mot (ou mot) de longueur n. Si on considère les xi comme des éléments du groupe G, ce mot a une valeur g dans G, et nous écrivons x1 x2 2 . . . x n n =G g (certains écrivent w). Définition 1.2. On dit que le X–mot w = x1 x2 2 . . . x ...

In recent years, most effective multi-object tracking (MOT) methods are based on the tracking-by-detection framework. Existing performance evaluations of MOT methods usually separate the target association step from the object detection step by using the same object detection results for comparisons. In this work, we perform a comprehensive quantitative study on the effect of object detection a...

Résumé : Une substitution est un morphisme de monöıdes libres : chaque lettre a pour image un mot, et l’image d’un mot est la concaténation des images de ses lettres. Cet article introduit une généralisation de la notion de substitution, où l’image d’une lettre n’est plus un mot mais un motif, c’est-à-dire un “mot à trous”, l’image d’un mot étant obtenue en raccordant les motifs correspondant à...

Middle-mode RNA synthesis in T4-infected cells takes place before replication of phage DNA commences. What distinguishes it from early-mode RNA synthesis is that initiation of middle RNA depends on T4-coded proteins, in particular on the mot gene product. mot protein is localized in a DNA-protein complex which forms during the first few minutes of infection. All of the cell's mot protein is bou...

Background. Basketball is a dynamic sport where athletes are expected to observe the fast movements of team players and opponents in a performance. This condition requires a collective focus on the stipulated tasks, to achieve peak performance. Besides, training is frequently performed to improve concentration and athlete performance. This instigates the need for technology-based methods, inclu...

INTRODUCTION The HIV Modes of Transmission (MOT) model estimates the annual fraction of new HIV infections (FNI) acquired by different risk groups. It was designed to guide country-specific HIV prevention policies. To determine if the MOT produced context-specific recommendations, we analyzed MOT results by region and epidemic type, and explored the factors (e.g. data used to estimate parameter...

The site displacement due to ocean tidal loading is regarded as one of the largest uncertainties in precise geodetic positioning measurements, among which the effect of minor ocean tides (MOT), except for the 11 main tidal constituents, are sometimes neglected in routine precise global positioning system (GPS) data processing. We find that MOT can cause large vertical loading displacements with...

We present a detailed investigation of strontium magneto-optical trap (MOT) dynamics. Relevant physical quantities in the trap, such as temperature, atom number and density, and loss channels and lifetime, are explored with respect to various trap parameters. By studying the oscillatory response of a two-level 1 S 0 – 1 P 1 88 Sr MOT, we firmly establish the laser cooling dynamics predicted by ...

A two-color magneto-optical trap (MOT) for trapping cesium (Cs) atoms is experimentally realized. This two-color MOT employs the radiation forces due to photon scattering from the Cs 6P(3/2) F' = 5 - 8S(1/2) F" = 4 excited-state transition, which replaced one pair of the three pairs of cooling/trapping laser beams operating on a single-photon red detuning to the Cs 6S(1/2) F = 4 - 6P(3/2) F' = ...