215,265 research outputs found

    Taxonomical and distributional notes on Polylepis (Rosaceae)

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    AbstractPolylepis pacensis M. Kessler & Schmidt-Leb. spec. nov. is described; P. flavipila (Bitter) M. Kessler & Schmidt-Leb., P. incarum (Bitter) M. Kessler & Schmidt-Leb., P. lanata (Kuntze) M. Kessler & Schmidt-Leb., and P. subtusalbida (Bitter) M. Kessler & Schmidt-Leb. are elevated from subspecies or varietal to species rank; P. triacontandra Bitter is reinstated as a species. The accompanying Electronic Supplement provides an updated key to species in Polylepis, and reports extensions to the known distribution ranges of three additional species of the genus.See also Electronic Supplement at: http://www.senckenberg.de/odes/06-01.ht

    Transcription of 2023 Texas A&M Law Review Symposium: More Than Sports: What Comes After NIL?

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    This transcription presents Jeffrey Kessler\u27s keynote speech at the 2023 Texas A&M Law Review Symposium on NCAA v. Alston and the future ahead

    Terpsichore contacta Moguel & M. Kessler 2009, comb. nov.

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    Terpsichore contacta (Copel.) Moguel & M. Kessler, comb. nov. Basionym:— Ctenopteris contacta Copeland (1955 [1956]: 477). Type:— BOLIVIA: Yungas, 1890, Bang 483 (holotype, US!; isotypes, B!, F, K!, N!). This species is characterised by conspicuously linear pinnae with parallel margins, leading to a pectinate aspect. Further peculiarities are the thin-chartaceous texture of the pinnae and the glabrous or one-ciliate sporangia. Terpsichore contacta is most similar to T. laxa (Presl, 1825: 23) Smith (1993: 487) but the latter has linear-deltate pinnae and abundantly ciliate sporangia. This is an epiphyte in the wet montain Yungas forests, from 1500 m to 2300 m in Peru and Bolivia.Published as part of Velázquez, Ana Laura Moguel & Kessler, Michael, 2009, Taxonomic notes on the fern species group around Terpsichore lanigera (Polypodiaceae), including the descriptions of three new species and one new variety, pp. 35-45 in Phytotaxa 2 on page 36, DOI: 10.11646/phytotaxa.2.1.6, http://zenodo.org/record/477614

    Lindsea linduensis D. Cicuzza & M. Kessler 2012, sp. nov.

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    Lindsea linduensis D.Cicuzza & M.Kessler, sp. nov. (Fig. 1). Type: — INDONESIA. Sulawesi: Central Sulawesi, at the border of the Lore Lindu National Park, Nokilalaki Mountain, Kulawi valley, 1200 m, 01°14'30.483" S, 120°09'19.828" E, 16 March 2008, Cicuzza 891 (holotype Z!, isotypes UC!, BO!, CEB!, GOET!). Differs from Lindsaea repens var. sessilis by having 2-pinnate fronds (versus 1-pinnate), longer petioles (10–17 cm versus 1–5 cm), and more widely spaced ultimate segments (> 5 mm apart versus 5 mm apart versus <4 mm). Following the keys of Kramer (1971), Lindsaea linduensis falls into group G (subg. Odontoloma Kunth). The specimen of L. linduensis keys out to the couplet containing L. rigida and L. regularis. From these, Lindsaea linduensis differs by having less strongly creeping rhizomes, fewer pinna pairs (1 in L. linduensis, 1–7 in L. rigida, 3–9 in L. regularis), and more sori per pinnule (7–8 in L. linduensis, 1–4 in L. rigida, 3–5 in L. regularis).Published as part of Cicuzza, Daniele & Kessler, Michael, 2012, Lindsaea linduensis (Lindsaeaceae, Polypodiales), a new fern species from Sulawesi, Indonesia, pp. 36-40 in Phytotaxa 65 (1) on pages 37-39, DOI: 10.11646/phytotaxa.65.1.4, http://zenodo.org/record/506209

    Three new Andean species of Hymenophyllum (Hymenophyllaceae–Pteridophyta)

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    We describe Hymenophyllum apteryx M. Kessler & Sundue, H. assurgens M. Kessler & A.R. Sm. and H. latisorum M. Kessler & A.R. Sm. as new to science

    Margarita Decretaliu[m]

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    Sticherus Gonzales & Kessler, 2011, comb. nov.

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    Sticherus ×subremotus (Jermy & T.G.Walker) J.Gonzales, comb. nov. Gleichenia ×subremota Jermy & Walker (1985: 2). Type:— TRINIDAD AND TOBAGO. Trinidad: Blanchisseuse Ward, 450 m, Walker T . 6416 (holotype BM). Distribution and ecology:— Costa Rica, Venezuela, and Trinidad; likely to be more widespread. It grows on open banks at forest edges or along roadsides, forming mixed colonies with S. interjectus and S. remotus at 60– 600 m. Notes:— This hybrid between S. interjectus and S. remotus was cytologically studied and described by Jermy and Walker (1985). It differs from S. interjectus by the more rounded and broader bases of the bud scales, from S. remotus by the approximate segments, abaxial segment surfaces scales, and it is different from both these species by having less regularly shaped and darkened scale cells. Many species in the species complex around S. remotus have unequally developed 2 nd branches, and this pattern is particularly noticeable in S. × subremotus.Published as part of Gonzales, Jasivia & Kessler, Michael, 2011, A synopsis of the Neotropical species of Sticherus (Gleicheniaceae), with descriptions of nine new species, pp. 1-54 in Phytotaxa 31 on page 48, DOI: 10.11646/phytotaxa.31.1.1, http://zenodo.org/record/489464

    M. Valéry Giscard d'Estaing et les républicains indépendants : réalités et perspectives

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    Kessler Marie-Christine. M. Valéry Giscard d'Estaing et les républicains indépendants : réalités et perspectives . In: Revue française de science politique, 16ᵉ année, n°5, 1966. pp. 940-957

    Longitudinal reference ranges for ductus venosus flow velocities and waveform indices

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    OBJECTIVES: Serial Doppler measurements of the ductus venosus are used increasingly for monitoring fetuses at risk of hemodynamic compromise, but existing reference ranges are based on cross-sectional studies and thus are less suitable for comparison with serial measurements. We aimed to establish longitudinal reference ranges for ductus venosus flow velocities and waveform indices and to provide the necessary terms for calculating conditional reference ranges for serial measurements. METHODS: This was a longitudinal study of 160 low-risk pregnancies. Pulsed Doppler ultrasound was used to record ductus venosus blood flow velocities at 4-week intervals from 20-22 weeks of gestation onwards. RESULTS: With a success rate of 93%, 547 measurements (four or five in each fetus) were used to establish reference ranges. The time-averaged maximum velocity was 50 cm/s at 21 weeks of gestation, increased to 60 cm/s at 32 weeks, and remained so until term. Similarly, the peak systolic velocity increased from 59 cm/s at 21 weeks to 71 cm/s at 31 weeks and remained so until term. The end-diastolic velocity showed a continuous increase from 31 cm/s at 21 weeks to 43 cm/s at 40 weeks. The pulsatility index for veins decreased from 0.57 at 21 weeks to 0.44 at 40 weeks. When conditioned by a previous measurement, the reference ranges for the next observation became narrower and commonly shifted compared with those of the entire population. CONCLUSION: The new longitudinal reference ranges presented here reflect the development of the ductus venosus flow velocities and velocity indices and are thus appropriate for serial measurements, particularly if conditional terms are include
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