Los híbridos de Sideritis hirsuta L. Y s. Tragoriganum lag. (Labiatae)

Se aportan datos sobre la taxonomía de los híbridos entre Sideritis hirsuta L. y S. ragoriganum Lag. (Labiatae). Se describen dos nuevas notosubespecies, S. × valentina nothosubsp. roselloi (de Sisante, Cuenca) y nothosubsp.rierae (de Cortes de Pallás, Valencia), proveniente la primera de la hibridación entre S. hirsuta y S. tragoriganum subsp. mugronensis (Borja) Obón & D. Rivera, y la segunda entre S. hirsuta y S. tragoriganum subsp. tragoriganum. Se presentan sendas descripciones morfológicas y sus principales caracteres diagnósticos frente a sus progenitores y a la notosubespecie tipo descrita por Sennen y Pau, considerada en este trabajo como híbrido entre S. hirsuta y S. tragoriganum subsp. juryi (Peris, Stübing & Figuerola) M.B. Crespo & Mateo. Se tipifican los nombres S. × valentina Sennen & Pau y S. × segobricensis var. pauana Font Quer, designando como lectotipos un espécimen de los exsiccata de Sennen Plantes d’Espagne conservado en el herbario MA y un espécimen de Pau conservado en BC, respectivamente. Se propone una combinación y estatus nuevo para el híbrido S. × laderoi Socorro & García-Granados, como notosubespecie de S. × valentina.New taxonomic data about the hydrization complex between Sideritis hirsuta L. y S. tragoriganum Lag. (Labiatae) are reported. Two news nothosubspecies are described, S. × valentina nothosubsp. roselloi (from Sisante, Cuenca, Spain) and nothosubsp. rierae (from Cortes de Pallás, Valencia, Spain); the first plant comes from the hybridization between S. hirsuta and S. tragoriganum subsp. mugronensis (Borja) Obón & D. Rivera, and the second one from S. hirsuta and S. tragoriganum subsp. tragoriganum. Morphological descriptions of these two hybrids are reported, emphasizing the main diagnostic characters which allow the separation from their parent taxa, and between type nothosubspecies described by Sennen and Pau from material collected in Benicarló and Peñíscola, and identified in this work as a hybrid between S. hirsuta and S. tragoriganum subsp. juryi (Peris, Stübing & Figuerola) M.B. Crespo & Mateo. The names S. × valentina Sennen & Pau and S. × segobricensis var. pauana Font Quer are typified, the lectotypes designated are a specimen preserved at MA from the Sennen's exsiccata Plantes d'Espagne, and a specimen from Pau preserved at BC, respectively. A new status and combination for the name S. × laderoi Socorro & García-Granados is reported, as a nothosubspecies of S. × valentina

Maple+GrTensorII libraries for cosmology

The article mainly presents some results in using MAPLE platform for computer algebra and GrTensorII package in doing calculations for theoretical and numerical cosmologyComment: LaTeX LLNCS style, 8 pages, accepted for SYNASC 2004 - 6th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing, Timisoara, Romania, September 26-30 200

Contribution to the knowledge of the family Otoplanidae Hallez, 1892 (Rhabditophora, Proseriata) in the Mediterranean

A growing awareness is rising that present perception of marine biodiversity is inadequate, and based upon unrepresentative data. The inadequacy of knowledge on taxonomy and distribution of marine organisms is particularly acute for interstitial meiofauna, especially for "soft bodied" taxa, which necessitate of observations on both living and fixed specimens. Among these groups, information on Platyhelminthes, a species-rich, ubiquitous and diverse taxon, is at present far from adequate, and is entirely absent for entire biogeographical regions. In this scenario, my research aimed to gather data in the composition and distribution of a family of Platyhelminthes Proseriata, the Otoplanidae Hallez, 1892, in biogeographically significant sectors along the coasts of Mediterranean. The most striking results of a series of sampling campaigns is the great number of new Otoplanidae species found. In this work fifteen new species, belonging to the genus Parotoplana Meixner, 1938 are formally described: P. pythagorae Delogu & Curini-Galletti, 2007; P. spathifera Delogu & Curini-Galletti, 2007; P. terpsichore Delogu & Curini-Galletti, 2007; P. jondelii Delogu & Curini-Galletti, 2007; P. cucullata Delogu et al., 2008; P. fretigaditani Delogu et al., 2008; P. varispinosa Delogu et al., 2008; P. mastigophora Delogu et al., 2008; P. geminispina sp. n., P. crassispina sp. n., P. carthagoensis sp. n., P. ichnusae sp. n., P. pulchrispina sp. n., P. obtusispina sp. n. and P. axii sp. n

Título: R P D Ursino Valentina Vicariae Lunae 7 Iunij 1694

A4Tít. tomado de principio de textoPie de imp. tomado de colofónPort. con esc. xi

Curve diffusion and straightening flows on parallel lines

In this paper, we study families of immersed curves $\gamma:(-1,1)\times[0,T)\rightarrow\mathbb{R}^2$ with free boundary supported on parallel lines $\{\eta_1, \eta_2\}:\mathbb{R}\rightarrow\mathbb{R}^2$ evolving by the curve diffusion flow and the curve straightening flow. The evolving curves are orthogonal to the boundary and satisfy a no-flux condition. We give estimates and monotonicity on the normalised oscillation of curvature, yielding global results for the flows.Comment: 35 pages, 3 figure

Título: R P D Ursino Valentina Vicariae Lunae 10 Ianuarij 1695

Tít. tomado de comienzo de textoPie de imp. tomado de colofónSign. : A4Port. con esc. xi

A Restriction Theorem for M\'etivier Groups

In the spirit of an earlier result of M\"uller on the Heisenberg group we prove a restriction theorem on a certain class of two step nilpotent Lie groups. Our result extends that of M\"uller also in the framework of the Heisenberg group.Comment: Corrected typos, introduction revised. Final version, to appear in Advances in Mathematic

Rationally cubic connected manifolds I: manifolds covered by lines

In this paper we study smooth complex projective polarized varieties (X,H) of dimension n \ge 2 which admit a dominating family V of rational curves of H-degree 3, such that two general points of X may be joined by a curve parametrized by V, and such that there is a covering family of rational curves of H-degree one. Our main result is that the Picard number of these manifolds is at most three, and that, if equality holds, (X,H) has an adjuction theoretic scroll structure over a smooth variety

Rawls’s inclusivism and the case of ‘religious militants for peace’: A reply to Weithman’s restrictive inclusivism

Across almost a decade, Desmond Tutu, Anglican cleric and chairman of South Africa’s Truth and Reconciliation Commission, supported a model of civil resistance against the apartheid regime based solely on religious argument. Tutu is one of what Appleby (2000) calls the “religious militants for peace”: people of faith who use religious arguments to buttress resistance against unjust regimes and to support vital political change with regard to rights and justice. Yet the employment of religious arguments to justify political action seems to contradict the liberal democratic requirements of public reason, particularly the duty of liberal citizens to provide reasons that others could reasonably endorse. If “religious militants” violate their duty of civility by appealing to their comprehensive doctrines, should liberal democracy exclude this form of religiously founded dissent as being unreasonable? Or, rather, should liberal democracy embrace and support the efforts of “religious militants” to enhance and/or restore political justice

On a curvature flow model for embryonic epidermal wound healing

The paper studies a curvature flow linked to the physical phenomenon of wound closure. Under the flow we show that a closed, initially convex or close-to-convex curve shrinks to a round point in finite time. We also study the singularity, showing that the singularity profile after continuous rescaling is that of a circle. We additionally give a maximal time estimate, with an application to the classification of blowups.Comment: 43 page