Necessary and sufficient conditions so that a commutative ring can be embedded into a strongly pi-regular ring

If R is commutative ring then R can be embedded into a strongly $\pi$-regular ring if and only if there exists a set of prime ideals Y = $\{$P\sb\alpha\}\alpha\in\Lambda and for each P\sb\alpha, a P\sb\alpha-primary ideal Q\sb\alpha such that: (I) Y is closed in the patch topology on Spec R. (II) \rm\cap\sb{\alpha\in\Lambda}Q\sb\alpha=\{0\}. (III) for each a $\in$ R there is n(a) $\in$ N such that for n $\ge$ n(a), \rm\{P\sb\alpha\mid P\sb\alpha\in Y and \rm a\sp{n}\in Q\sb\alpha\} is patch open in Y

Relation entre la composition sexuelle du groupe, les attitudes face à la mixité et l'engagement organisationnel dans un service policier qui a un programme d'accès à l'égalité

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal

The CPLEAR detector at CERN

The CPLEAR collaboration has constructed a detector at CERN for an extensive programme of CP-, T- and CPT-symmetry studies using ${\rm K}^0$ and $\bar{\rm K}^0$ produced by the annihilation of $\bar{\rm p}$'s in a hydrogen gas target. The ${\rm K}^0$ and $\bar{\rm K}^0$ are identified by their companion products of the annihilation ${\rm K}^{\pm} \pi^{\mp}$ which are tracked with multiwire proportional chambers, drift chambers and streamer tubes. Particle identification is carried out with a liquid Cherenkov detector for fast separation of pions and kaons and with scintillators which allow the measurement of time of flight and energy loss. Photons are measured with a lead/gas sampling electromagnetic calorimeter. The required antiproton annihilation modes are selected by fast online processors using the tracking chamber and particle identification information. All the detectors are mounted in a 0.44 T uniform field of an axial solenoid of diameter 2 m and length 3.6 m to form a magnetic spectrometer capable of full on-line reconstruction and selection of events. The design, operating parameters and performance of the sub-detectors are described.

L'ordre sabbatique. Prise de conscience du Réel

Philippoussis Robert. L'ordre sabbatique. Prise de conscience du Réel. In: Autres Temps. Cahiers d'éthique sociale et politique. N°63, 1999. pp. 41-47

La foi ne déplace pas les montagnes, c'est la place des montagnes qui change

Philippoussis Robert. La foi ne déplace pas les montagnes, c'est la place des montagnes qui change. In: Autres Temps. Cahiers d'éthique sociale et politique. N°71, 2001. pp. 7-22

Soupe originelle

Philippoussis Robert. Soupe originelle. In: Autres Temps. Cahiers d'éthique sociale et politique. N°71, 2001. pp. 3-6