P-equivalence de groupes nilpotents

Lemaire, Claude

doi:10.1007/bf01262038

Cited by 4 publications

(5 citation statements)

References 11 publications

(6 reference statements)

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“…Physiological parameters including sex and maturation [21,43 -451, temperature [46,47] and diet [48] are known to have some effects on CYP related activities. Sampling animals at the same time (e.g., within 2 weeks), pooling many animals from both sex for each sample or working on sedentary hermaphrodite species (like Serranus cabvilla), is a technical approach able to limit the variability of the measurement due to natural parameters.…”

Section: Cytochrome P450 Dependent Activities In Sea Comber Livermentioning

confidence: 99%

Cytochrome P450 Dependent Activities in Mussel and Fish from Coastal Marine Environment: Field Studies on the French Coast of the Mediterranean Sea

Michel

Mora

Garrigues

et al. 2001

Polycyclic Aromatic Compounds

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Hepatic cytochrome P450 monooxygenase activities including Benzo(a)pyrene hydroxylase (BPH), biomarker of exposure to polycyclic hydrocarbons (PAH) and other organic contaminants like polychlorobiphenyls (PCB) was measured in the microsomal fraction from the fish, Serranus cabrilla (sea comber) liver, and the mussel, Mytilus galloprovincialis, digestive gland. Additionally, ethoxyresorufin-0-deethylase (EROD) activity measurements were made on the same fish samples. The animals were collected from multiple sites on the French Mediterranean coast, exhibiting various degrees of sediment contamination by urban/industrial wastes quantified in term of PAH and PCB sediment content. Mussel BPH, fish BPH and to a lower extent fish EROD activities were tentatively correlated to sediment PAHjPCB content. The presence of low concentration (20 pM) of a-naphthoflavone (ANF ) in the assay mixture increased hepatic BPH activity of sea comber. Statistical correlation of hepatic BPH with PAH level in sediment was greater with the presence of ANF. This work demonstrates the potential of mussel to be used in biomonitoring programmes for coastal pollution survey.

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Section: Cytochrome P450 Dependent Activities In Sea Comber Livermentioning

confidence: 99%

Cytochrome P450 Dependent Activities in Mussel and Fish from Coastal Marine Environment: Field Studies on the French Coast of the Mediterranean Sea

Michel

Mora

Garrigues

et al. 2001

Polycyclic Aromatic Compounds

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“…We denote by V ~ the subspace (9 {xe V[(~o -~t id)'(x) = 0 for some t}. Let qg : V ~ Vbe an endomorphism of a vector space V over a field k, let 7ek be an eigenvalue of ~o.…”

Section: (B) If G :F -~ F Is a D-divisible P-equivalence And In Addimentioning

confidence: 99%

“…[9]; secondly, it can immediately be applied to the theory for spaces as we hope to document elsewhere. [9]; secondly, it can immediately be applied to the theory for spaces as we hope to document elsewhere.…”

Section: Introductionmentioning

confidence: 99%

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P-universality and fibrewise P-universality in the category of nilpotent groups

Kahn

Scheerer

1983

Geom Dedicata

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“…To study this question, the notion of P-universality was introduced in [17]. Some of the authors of [17] and various other writers continued this investigation ( [12], [16], [18], [20], [21], [26], and [13], [14] for the category of nilpotent groups). In particular, it was noticed in [16] that for 1-connected finite complexes, "P-universal" is equivalent to "P-localizable by telescoping".…”

Section: Introductionmentioning

confidence: 99%

Fibrewise P-universal nilpotent fibrations

Scheerer¹

1984

Proceedings of the Royal Society of Edinburgh: Section A Mathem

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SynopsisLet P be a set of primes. A nilpotent space X is called “P-universal”, if its P-localization canbe obtained as a direct limit over a sequence of selfmaps of X. A nilpotent fibration is called “fibrewiseP-universal”, if its fibrewise P-localization can be obtained in a similar way as a direct limit of fibrewise maps. In this paper, the following results are proved. Let π:E → B be a nilpotent fibration of connected finite or cofinite spaces. If π is fibrewise P-universal for some proper subset P of the set of primes, then its minimal model (in the sense of D. Sullivan's rational homotopy theory) admits a certaintype of weight decomposition. But the existence of such a weight decomposition implies only that there exists a finite set of primes, such that IT is fibrewise P-universal for all P with . In the absolute case however, i.e.B is a point, the set P can be chosen as the empty set. Thus a result announced by R. Body and D. Sullivan is recovered.

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P-equivalence de groupes nilpotents

Cited by 4 publications

References 11 publications

Cytochrome P450 Dependent Activities in Mussel and Fish from Coastal Marine Environment: Field Studies on the French Coast of the Mediterranean Sea

Cytochrome P450 Dependent Activities in Mussel and Fish from Coastal Marine Environment: Field Studies on the French Coast of the Mediterranean Sea

P-universality and fibrewise P-universality in the category of nilpotent groups

Fibrewise P-universal nilpotent fibrations

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