A of seismic waves is sensitive to the physical properties of the subsurface and has been observed in vertical seismic profiling (VSP) and reflection data. De et al. (1994) report measurements of the Pand S-wave quality factors from VSP surveys and sonic logs. Klimentos (1995) measures compressional and shear attenuation from sonic logs in sandstone formations with variable oil, water, and gas...

Multicomponent data are not usually processed with specifically designed procedures, but with procedures analogous to the ones used for single-component data. In isotropic media, the vertical and horizontal components of the data are commonly taken as proxies for the Pand S-wave modes which are imaged independently with acoustic wave equations. This procedure works only if the vertical and hori...

Phycocyanin, Phycoerythrin, Phytochrom, Circulardichroism, D enaturation The circulardichroism spectra (cd) of native and (partially) urea-denaturated C-phycocyanin (PC) in the spectral range 700-210 nm are presented. The large ellipticities observed in the chromophoric region of native PC are retained in the fully denatured state (8 M urea). This is similar to the behavior of the red form of p...

We use a multiple-empirical Green's function method to determine source properties of small (M 0.4 to 1.3) earthquakes and Pand S-wave attenuation at the Coso Geothermal Field, California. Source properties of a previously identified set of clustered events from the Coso geothermal region are first analyzed using an empirical Green's function (EGF) method. Stress-drop values of at least 0.5-1 M...

Mealybugs (Hemiptera, Coccoidea, Pseudococcidae) are plant sap-sucking insects that have within their body cavities specialized cells containing prokaryotic primary endosymbionts (P-endosymbionts). The Pendosymbionts have the unusual property of containing within their cytoplasm prokaryotic secondary endosymbionts (S-endosymbionts) [C. D. von Dohlen, S. Kohler, S. T. Alsop, and W. R. McManus, N...

Cet article retrace les processus de co-construction savoirs entre chercheurs intéressés au développement d’une visée inclusive sein des écoles, depuis le tissage réseaux internationaux la francophonie, jusqu’à l’aboutissement publication collective réunissant 15 autrices et auteurs trois continents, en passant par l’organisation d...

This supplement issue of Journal for Peace and Nuclear Disarmament presents the papers commissioned in 2021 to support Project on Reducing Risk Weapons Use Northeast Asia (NU-NEA). The NU-NEA project was developed study risk contours conflict terrain war nuclear escalation around Korean peninsula. is being carried out part by developing a set plausible “use cases” weapons NEA, that is, cases wh...

La crise pandémique a mis en évidence les spécificités de la violence genre se référant particulièrement à domestique. À partir du concept d’« espace sûr », identifié comme espace domestique confinement pour protection contre le virus, il est possible d’identifier formes structurelles dans vie des femmes.L&#8...