47,577 research outputs found
Annickia Setten & Maas, Taxon 39 (4): 676 1990
No full textAnnickia Setten & Maas, Taxon 39 (4): 676, 1990 = Enantia Oliv. nom. illeg.; J. Linn. Soc., Bot. 9: 174-175, 1867. Type species. Enantia chlorantha Oliv. (≡ Annickia chlorantha (Oliv.) Setten & Maas). Description. Trees, up to 30 m tall, d.b.h. up to 50 cm; stilt roots or buttresses absent, slash yellow. Indumentum of simple, stellate and/or fasciculate hairs. Leaves: petiole 2-9 mm long, 1-2 mm in diameter; blade 3.5-29.5 cm long, 1.5-10.5 cm wide, elliptic to obovate, apex acuminate to acute, base narrowly cuneate to shortly attenuate to rounded; midrib sunken or flat; secondary veins 8 to 13 pairs; tertiary venation reticulate. Individuals bisexual; inflorescences ramiflorous on old or young foliate branches, leaf opposed or extra axillary. Flowers with 6 perianth parts in 2 whorls, 1 per inflorescence; pedicel 4-19 mm long; in fruit 10-27 mm long; bracts 1 to 2, basal and one upper towards the middle or lower half of pedicel, 2-8 mm long; sepals 3, valvate, free, 5-22 mm long, triangular, apex acute, base truncate; petals free; outer petals absent; inner petals 3, valvate, 12-34 mm long, 5-19 mm wide, ovate, margins inversely Y-shaped ridged, apex acute, base broad and concave; stamens 60 to 200, in 5 to 6 rows, 2-4 mm long, linear; connective tongue shaped or flattened, glabrous; staminodes absent; carpels free, 20 to 70, ovary 2-4 mm long, stigma lobed or cylindrical, pubescent. Monocarps stipitate, stipes 6-59 mm long, 5 to 55 monocarps, 18-35 mm long, 4-14 mm in diameter, ellipsoid to obovoid, apex sometimes mucronate, smooth, glossy; seed 1, 20-30 mm long, ca. 10 mm in diameter, ellipsoid; aril absent. A genus of eight species mostly distributed across west and central Africa, with one endemic species in Tanzania; four species occur in Cameroon, none endemic. The genus is easily identifiable when sterile by its yellow slash, and when fertile, by its leaf opposed or extra-axillary (terminal) flowers with 3 sepals and 3 petals, and stipitate monocarps with a single seed. Taxonomy. Versteegh and Sosef (2007).Published as part of Couvreur, Thomas L. P., Dagallier, Leo-Paul M. J., Crozier, Francoise, Ghogue, Jean-Paul, Hoekstra, Paul H., Kamdem, Narcisse G., Johnson, David M., Murray, Nancy A. & Sonke, Bonaventure, 2022, Flora of Cameroon - Annonaceae Vol 45, pp. 1-532 in PhytoKeys 207 on page 30, DOI: 10.3897/phytokeys.207.6143
Pf-5 for Nitrogen Fixation and its Application to Improve Plant Growth under Nitrogen-Deficient Conditions
No full textNitrogen is the second most critical factor for crop production after water. In this study, the beneficial rhizobacterium Pseudomonas protegens Pf-5 was genetically modified to fix nitrogen using the genes encoding the nitrogenase of Pseudomonas stutzeri A1501 via the X940 cosmid. Pf-5 X940 was able to grow in L medium without nitrogen, displayed high nitrogenase activity and released significant quantities of ammonium to the medium. Pf-5 X940 also showed constitutive expression and enzymatic activity of nitrogenase in ammonium medium or in nitrogen-free medium, suggesting a constitutive nitrogen fixation. Similar to Pseudomonas protegens Pf-5, Pseudomonas putida, Pseudomonas veronii and Pseudomonas taetrolens but not Pseudomonas balearica and Pseudomonas stutzeri transformed with cosmid X940 showed constitutive nitrogenase activity and high ammonium production, suggesting that this phenotype depends on the genome context and that this technology to obtain nitrogen-fixing bacteria is not restricted to Pf-5. Interestingly, inoculation of Arabidopsis, alfalfa, tall fescue and maize with Pf-5 X940 increased the ammonium concentration in soil and plant productivity under nitrogen-deficient conditions. In conclusion, these results open the way to the production of effective recombinant inoculants for nitrogen fixation on a wide range of crops. © 2013 Setten et al
G. M. Hopkins
No full text[sound recording] / Brendan O'Grady. G. B. Shaw by Fran Frazer.; 1 sound cassette (60 minutes); Broadcast on CFCY Radio, Charlottetown, March 07 & 11, 1974.; G. B. ShawSource type: Electronic(1
Erratum to: Effect of moderate red wine intake on cardiac prognosis after recent acute myocardial infarction of subjects with Type 2 diabetes mellitus (Diabetic Medicine, (2006), 23, 9, (974-981), 10.1111/j.1464-5491.2006.01886.x)
No full textIn an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola.In an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola
The M&G Drive
No full textabstract: The M&G Drive is a proposed venture project lead by Barrett seniors, Elijah Smith and Jenna Fitzgerald. This project aims to educate Arizona State University (ASU) students on the issues of food insecurity around the Phoenix valley and facilitate their involvement in helping alleviate this pressing social matter. Scientific research has shown significant inverse relationships between food insecurity and the following: mental and physical health, social skills, and academic achievement. As the largest public university in the nation, Arizona State holds a self-ascribed responsibility for the health of its communities. In order to address this issue on behalf of Arizona State and from the standpoint of college students, this proposed venture will encourage the ASU student population to reallocate their unused M&G Dollars (ASU’s on-campus currency) to go toward this cause. Rather than being absorbed back by the university system, unused M&G Dollars can instead be used to purchase non-perishables that will then be donated to the local Phoenix community in order to help fight against food insecurity
Lah–Ribarič type inequalities for (h, g; m)-convex functions
No full textRecently introduced new class of (h, g; m)-convex functions unifies a certain range of convexity, thus allowing the generalizations of know results. In this paper we prove Lah–Ribarič type inequalities for (h, g; m)-convex functions from which we obtain inequalities of Hermite–Hadamard, Fejér, Giaccardi, Popoviciu and Petrović. © 2021, The Author(s) under exclusive licence to The Royal Academy of Sciences, Madrid
Annickia polycarpa Setten & Maas ex I. M. Turner, Phytotaxa 32: 52 2011
No full textAnnickia polycarpa (DC.) Setten & Maas ex I.M. Turner, Phytotaxa 32: 52, 2011 Fig. 5; Map 1E ≡ Unona polycarpa DC., Syst. Nat. 1: 499, 1817; Coelocline Unona polycarpa (DC.) A.DC., Mém. Anon.: 33, 1832; Melodorum polycarpum (DC.) Benth., Trans. Linn. Soc. London 23: 477-478, 1862; Xylopia? Xylopia polycarpa (DC.) Oliv., Fl. Trop. Afr. 1: 32, 1868. Type. Sierra Leone. no region; no locality, Afzelius A. s.n., no date: holotype: B[B 10 0068937]; isotype: BM[BM000547035]. Description. Tree, 2-20 m tall, d.b.h. unknown; stilt roots or buttresses absent, slash yellow. Indumentum of simple, bifid, fasciculate or star hairs; old leafless branches glabrous, young foliate branches densely pubescent to tomentose. Leaves: petiole 3-8 mm long, 2 mm in diameter, densely pubescent to tomentose, grooved, blade inserted on the side of the petiole; blade 5-27 cm long, 2-8 cm wide, elliptic to obovate, apex acuminate, acumen 1-2 cm long, base cuneate to acuminate, coriaceous, below pubescent when young and old, hairs mainly bifid or stellate but some simple too, pointing in all directions, above pubescent when young and old, concolorous; midrib sunken or flat, above pubescent towards base when young, pubescent towards base when old, below pubescent when young, sparsely pubescent when old; secondary veins 8 to13 pairs, pubescent below; tertiary venation intermediate. Individuals bisexual; inflorescences ramiflorous on old or young foliate branches, leaf opposed or extra axillary. Flowers with 6 perianth parts in 2 whorls, 1 per inflorescence; pedicel 9-19 mm long, ca. 2 mm in diameter, pubescent; in fruit 20 mm long, 4-5 mm in diameter, pubescent; bracts 2, one basal and one upper towards the middle of pedicel, basal bract 8 mm long, 4 mm wide; sepals 3, valvate, free, 9-22 mm long, 4-5 mm wide, triangular, apex acute, base truncate, pubescent outside, glabrous inside, margins flat; petals free; outer petals absent; inner petals 3, valvate, 23-34 mm long, 8-19 mm wide, elliptic to inversely Y-shaped ridged, apex acute, base broad and concave, claw mm long, yellow, margins wavy, densely pubescent outside, glabrous inside; stamens 90 to 200, in 5 to 6 rows, 3-4 mm long, linear; connective flattened, glabrous; staminodes absent; carpels free, ca. 70, ca. ovary 3 mm long, stigma lobed, sparsely pubescent. Monocarps stipitate, stipes 19-59 mm long, 1-2 mm in diameter, monocarps 5 to 55, 18-23 mm long, 8-12 mm in diameter, obovoid, apex mucronate, sparsely pubescent, smooth, glossy, green turning red to black when ripe; seed 1, ca. 20 mm long, ca. 10 mm in diameter, ellipsoid; aril absent. Distribution. A mainly West African species, from Sierra Leone to Cameroon; in Cameroon known from the South region. Habitat. A rare species in Cameroon, in lowland and pre-montane rain forests mainly in primary habitats. Altitude 110-1400 m a.s.l. Local and common names known in Cameroon. Pola (Mvaï, Fang, Annet 174); African yellow wood, yellow wood (english); Moambe jaune (french). IUCN conservation status. Least Concern (LC) (Cosiaux et al. 2019d). Uses in Cameroon. medicine: bark as an antisepctic, against fever, malaria; construction: house building, furniture; dyes and tannins: as a yellow dye. Notes. Annickia polycarpa is distinguished by the densely pubescent to tomentose upper side of the midrib and the petioles, and generally long stipes. Specimens examined. South Region: Bipindi, 3.26°N, 10.20°E, 09 June 1928, Annet E. 174 (P).Published as part of Couvreur, Thomas L. P., Dagallier, Leo-Paul M. J., Crozier, Francoise, Ghogue, Jean-Paul, Hoekstra, Paul H., Kamdem, Narcisse G., Johnson, David M., Murray, Nancy A. & Sonke, Bonaventure, 2022, Flora of Cameroon - Annonaceae Vol 45, pp. 1-532 in PhytoKeys 207 on pages 39-40, DOI: 10.3897/phytokeys.207.6143
Hydroxybutyrate prevents protein aggregation in the halotolerant bacterium Pseudomonas sp. CT13 under abiotic stress
No full textPolyhydroxybutyrate (PHB), a typical carbon and energy storage compound, is widely found in Bacteria and Archae domains. This polymer is produced in response to conditions of physiological stress. PHB is composed of repeating units of β-hydroxybutyrate (R-3HB). It has been previously shown that R-3HB functions as an osmolyte in extremophile strains. In this study, Pseudomonas sp. CT13, a halotolerant bacterium, and its PHB synthase-minus mutant (phaC) were used to analyze the chaperone role of R-3HB. The production of this compound was found to be essential to salt stress resistance and positively correlated with salt concentration, suggesting that PHB monomer acts as a compatible solute in Pseudomonas sp. CT13. R-3HB accumulation was also associated with the prevention of protein aggregation under combined salt and thermal stresses in Pseudomonas sp. CT13. Physiological concentrations of R-3HB efficiently reduced citrate synthase (CS) aggregation and stabilized the enzymatic activities of CS during thermal stress. Docking analysis of the CS/R-3HB interaction predicted the stability of this complex under physiological concentrations of R-3HB. Thus, in vivo, in vitro and in silico analyses suggest that R-3HB can act as a chemical chaperone
Representative Bureaucracy and the Willingness to Coproduce: An Experimental Study
No full textRelying on the theory of representative bureaucracy—specifically, the notion of symbolic representation—this article examines whether varying the number of female public officials overseeing a local recycling program influences citizens’ (especially women's) willingness to cooperate with the government by recycling, thus coproducing important policy outcomes. Using a survey experiment in which the first names of public officials are manipulated, the authors find a clear pattern of increasing willingness on the part of women to coproduce when female names are more represented in the agency responsible for recycling, particularly with respect to the more difficult task of composting food waste. Overall, men in the experiment were less willing to coproduce across all measures and less responsive to the gender balance of names. These findings have important implications for the theory of representative bureaucracy and for efforts to promote the coproduction of public services.This is the peer reviewed version of the following article: Riccucci, Norma M., Van Ryzin, Gregg G. & Li, Huafang. (2015). Representative Bureaucracy and the Willingness to Coproduce: An Experimental Study. Public Administration Review, which has been published in final form at http://dx.doi.org/10.1111/puar.12401. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.Peer reviewe
On the elastic tensors of ultra-thin films: A study of ruthenium
No full textThe resources and services used in this work were partly provided by the VSC (Flemish Supercomputer Center) , funded by the Research Foundation-Flanders (FWO) , Belgium and the Flemish Government, Belgium. The various members of our group for discussions and aid over the course of this research
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