5,941 research outputs found
Eudendrium caraiuru Marques & Oliveira, 2003, sp. n.
No full textEudendrium caraiuru sp. n. Figures 1–19 Eudendrium glomeratum; Marques, 1993: 68 –75, pl. 3; 2001: 361–369, figs. 23–30; Migotto, 1996: 122; Rosso and Marques, 1997: 417; Oliveira et al., 2000: 519 –525; Migotto et al., 2001: 289, 294– 296; 2002: 11. non Eudendrium glomeratum Picard, 1951. Type material. Holotype: Brazil: São Sebastião: Baleeiro Point, female colony, 08.iii. 1988, formol, on rock, 3m, col. A.E. Migotto (MZUSP 0385; former ACMSP029). Paratypes: Brazil: São Sebastião: Cigarras Beach: male colony, 15.vii. 1988, formol, intertidal, col. A.E. Migotto (MZUSP 0388; former ACMSP034); Pitangueiras Beach (north rocky shore): male colony, 24.x. 1992, formol, on rock, intertidal, col. A.C. Marques (ROMIZ B 1223; former ACMSP 162); Jarobá Point, Parque: male colony, 17.ix. 1990, formol, on test panel, 2m, col. A.C. Marques (MZUSP 0394; former ACMSP056); Baleeiro Point:; Baraqueçaba Beach: female colonies, 12.xii. 2001, formol, on metallic structures, 7m, col. H.K. Boscolo (MZUSP 0372); Lage dos Moleques: female colony, 05.xii. 1991, formol, on rock, 5m, col. A.C. Marques (MZUSP 0423; former ACMSP 114). Additional material. Brazil. Rio de Janeiro: Urca: colony without gonophores, ix. 1990, leg. I. Zalmon (MZUSP 0375; former ACMRJ008); Ubatuba: Lázaro Beach: colony without gonophores, 28.vii. 1992, formol, on rock, intertidal, col. A.C. Marques (MZUSP 0427; former ACMSP 120); colony without gonophores, 28.vii. 1992, formol, on rock, intertidal, col. A.C. Marques (MZUSP 0428; former ACMSP 121); Maranduba Beach: colony without gonophores, 30.vii. 1992, formol, on rock, intertidal, col. A.C. Marques (MZUSP 0429; former ACMSP 123); São Sebastião: Pier Sul (Petrobrás): male colony, 18.vii. 1990, formol, on Perna perna, 1m, col. J.C. de Freitas (ACMSP064); Pitangueiras Beach (north rocky shore): colony without gonophores, 18.viii. 1988, formol, 6m, col. A.E. Migotto (MZUSP 0458; former ACMSP 159); male colony, 03.iv. 1992, formol, on Schizoporella, 3m, col. A.E. Migotto (MZUSP 0459; former ACMSP 161); Jarobá Point (23 º 49,654´S 45 º 25,366´W): colony without gonophores 17.viii. 1990, formol, on test panel, 1m, col. A.C. Marques (MNRJ 2043; former ACMSP044); colony without gonophores, 17.viii. 1990, formol, on test panel, 1m, col. A.C. Marques (ROMIZ B 1221; former ACMSP045); colony without gonophores, 20.viii. 1990, formol, on test panel, 2m, col. A.C. Marques (MNRJ 2044; former ACMSP048); colony without gonophores, 20.viii. 1990, formol, on test panel, 2m, col. A.C. Marques (MNRJ 2045; former ACM SP049); colony without gonophores, 20.viii. 1990, formol, on test panel, 2m, col. A.C. Marques (ROMIZ B 1222; former ACMSP050); colony without gonophores, 15.ix. 1990, formol, on rope, 2m, col. A.C. Marques (MZUSP 0392; former ACMSP054); male colony, 15.ix. 1990, formol, on rope, 2m, col. A.C. Marques (MZUSP 0393; former ACM SP055); colonies without gonophores, 22.i. 2000, formol, on test panel, 1m, col. O.M.P. Oliveira (MZUSP 0368); female colonies, 22.i. 2000, formol, on test panel, 1m, col. O.M.P. Oliveira (MZUSP 0369); colonies without gonophores, 25.i. 2002, alcohol, on ropes, 1m, col. O.M.P. Oliveira (MZUSP 0370); Barequeçaba Point (23 º 49,979´S 45 º 25,843´W): colonies without gomophores, 12.xii. 2001, formol, on metallic structures, 7m, col. H.K. Boscolo (MZUSP 0371); female colonies, 12.xii. 2001, formol, on metallic structures, 7m, col. H.K. Boscolo (MZUSP 0372); Cananéia: Cardoso Island, costão do Pereirinha: colony without gonophores, 26.viii. 1992, formol, on rock, intertidal, col. A.C. Marques (MZUSP 0447; former ACMSP 145). Diagnosis. Large euryteles with shaft:capsule proportion 3.0– 3.6; in pads on hydranth body, spadix of female gonophores, and in a whorl of 16–25 around hypostome. Female blastostyles with reduced hypostome and tentacles. Etymology. From the Tupi native language “ cáraiurú ” (= powerful mouth), in reference to the presence of large euryteles on the hypostome. Description. Colonies dioecious, arborescent, up to 54 mm in height, main stems unfascicled. Hydrocauli arising from creeping hydrorhiza; branches many, more or less alternate, occurring over entire hydrocaulus, branches up to third order, in radiate planes or rarely more or less planar; pedicels arising from main stem or branches of first, second or third order. Perisarc of main stem strongly developed, dark brown, single tubes 0.40 mm in diameter, with scarce annulations, in sets of 3–8 rings. Branches with 3–7 rings at origin, 0.20–0.25 mm in diameter. Pedicels sometimes completely annulated, yellowish, ca. 0.10 mm in diameter. Hydranths 0.18–0.75 mm in height, 0.18–0.57 mm in diameter (measured in the body region just below the tentacles), orange in color, with a distinct groove in the aboral region; tentacles 23–34 in number, occurring in a whorl below hypostome. Some hydranths with reduced tentacles juxtaposed in two close whorls. Gonophores styloids, arising from body of hydranth. Immature styloids placed in a circle around body of hydranth. Male blastostyle orange, with 10–29 sporosacs, each sporosac 1–2 chambered, linked to blastostyle body by a stalk, with a very distinct spadix over its longitudinal axis, and a terminal tubercle on its apex; distal chamber 0.12–0.18 mm in diameter. Male blastostyles completely reduced over earlier stages of their development with pedicels corrugated throughout. Female gonophores orange, arising on partially reduced blastostyles with highly atrophied hypostome and degenerated tentacles. Immature eggs having a simple and curved spadix over a single egg. Blastostyle reducing completely during development or at maximum with 1–5 stumps (tentacles), and spadices shed. Mature oval eggs thickened by perisarc and linked directly to the wrinkled pedicel by short and shallow concave peduncles. Eggs 4–7 in number, 0.24–0.39 mm in diameter. Nematocysts of two categories, heterotrichous microbasic euryteles and heterotrichous macrobasic (or mesobasic) euryteles. Small microbasic euryteles (seen discharged), 6.1 –8.0 X 2.9–3.9 m, L / W = 1: 2.05– 2.1, oval, abundant; distributed over hydranth body, hypostome, coenosarc, and tentacles. Large macrobasic euryteles (seen discharged), 18.7–22.7 X 7.1–9.3 m, L / W 1: 2.4– 2.6, bean shaped, common. Discharged shaft up to 60 m in length, 3. 0–3.6 times length of capsule; undischarged shaft in 1.5 coils inside capsule; distributed on hydranth body sometimes forming pads to a continuous ring, up to 25 capsules on hypostome, coenosarc, terminal tubercle, and immature female spadix sometimes forming pads. Distribution. Brazil: Rio de Janeiro State: Rio de Janeiro (Marques, 2001); São Paulo: Ubatuba (Marques, 2001), São Sebastião (Oliveira et al., 2000; Marques, 2001), Cananéia (Marques, 2001).Published as part of Marques, Antonio C. & Oliveira, Otto M. P., 2003, Eudendrium caraiuru sp. n. (Hydrozoa; Anthoathecata; Eudendriidae) from the southeastern coast of Brazil, pp. 1-12 in Zootaxa 307 on pages 3-6, DOI: 10.5281/zenodo.15661
J.C. Steyn Collection index
No full textThis index describes the J. C. Steyn collection which includes background material for 3 biographies by J.C. (Jaap) Steyn namely N.P. van Wyk Louw, P.J. Cillié and MER (M.E. Rothman). Prof. J.C. Steyn (1939-) is an educationist, linguist and author. Correspondence ; clippings ; photographs ; book reviews ; articles ; speeches ; varia compiled in 23 pamphlet boxes
Product Innovation Knowledge Transfer for Developing Countries: Towards a systematic Transfer Approach
No full textThe transfer of knowledge on product innovation to small- and medium-sized enterprises and local knowledge institutions in developing countries is expected to be one of the key drivers for competiveness and economical growth, and a part of the solution to environmental and social challenge. In that respect, this PhD study focuses on how the process of the current knowledge transfer takes place and how it can be improved. A combination of literature review and empirical research has resulted into a conceptual framework to describe the complex and dynamic process of product innovation knowledge transfer to developing countries. In order to improve this process, a systematic approach has been developed and operationalized by a needs assessment tool and a design manual: The UNEP Design for Sustainability for Developing Economies (D4S-DE) Manual (www.d4s-de.org). Both tools have been tested in practice by practitioners and have been evaluated by an academic review board.Design EngineeringIndustrial Design Engineerin
Tagus estuary salt marshes feedback to sea level rise over a 40-year period: Insights from the application of geochemical indices
No full textSea level rise (SLR) has been evaluated using data acquired from two Tagus estuary salt marshes. Sediment accumulation rates over a 40-year study period were determined using 137Cs along with an evaluation of several geochemical indices and ratios as proxies of the mechisms underlying these SAR variations. Correlating SLR data from 1963 to 2001 with the sediment accretion rates (SARs) an inverse pattern of interaction was observed, with lower SAR associated to periods of higher mean sea level (MSL) heights. This pointed out to an erosion effect of the salt marsh during higher tidal flooding. Although SLR apparently slows down SAR, it still presents a positive balance with SLR, similar to that identified in most mesotidal estuaries. The geochemical analysis of sediments and chemical alteration index (CAI) also suggest that the major processes inherent to the SAR vary inversely, being mostly based by physical disturbances. Geochemical ratio-based indices showed that both salt marshes presented enhanced high-energy transport driven inputs of sediments, although in Pancas salt marsh there is a slight evidence of chemical weathering of the sediments. Anthropogenic contamination of the sediments by heavy metals was identified and has been decreasing from 1963 to 2001, mostly linked to a marked reduction of industrial activities in some areas surrounding the Tagus estuary, rather than the sedimentary history of the estuary
Where do we draw lines: professional relationship boundaries and the child and youth care practitioner
No full textThe question of professional relationship boundaries is a poignant one, in light of the many boundary grey-zones that are created by the variety of young people’s needs, practice settings and professional relationship contexts within the field of child and youth care. In order to support practitioners’ development of critical thought and awareness of professional boundaries, this paper applies a professional relationship boundaries conceptual framework to child and youth care work, and the literature is consulted to explore the impacts of boundary violations, influences on individual’s boundaries, cues to indicate blurring boundaries, and key strategies to maintain balanced boundaries
Zostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress index
No full textBeyond their undeniable role, nowadays we also must look to seagrass beds as endangered environments
with urgent monitoring and conservation needs. In the present study Z. noltii photochemical performance
of under different stages of development/recovery was assessed and its results applied in the development of a photochemical stress index (PSI) to classify and efficiently assess the physiological condition
of seagrass beds. In order to investigate deeper into this metabolic network the JIP-test was applied,
allowing to identify the reasons underlying the first signs of stress. Less developed beds low connectivity between PS II antennae leading inevitably to an impairment of the energetic transport. Associated
to this also the quinone pool showed severe depletion both in number and function. Alongside the Kstep presence in the Kautsky curve points to severe damage at donor side of the PS II, where the Oxygen
Evolving Complexes (OECs) are located. All these negative impacts increase the quantum yield of the nonphotochemical reactions in stressed/less developed seagrass beds. In sum, more developed beds show
proportionally higher light use efficiencies promoted by a higher number of oxidized reaction centres
coupled with an enhanced capacity in using the generated electron potential and relatively lower energy
dissipations. Coupling all the photochemical into an Integrated Biomarker Response (IBR) approach, a
photochemical stress index (PSI) was produced. The PSI showed that more developed sites present lower
photochemical stress values with inverse significant correlation with biomass coverage, reinforcing the
applicability of this non-invasive index as a reflex of the seagrass bed development stage
Anthropometry of the Beaver, Sekani, and Carrier Indians:
No full textby J.C. Boileau GrantBulletin (National Museum of Canada) ; 81. Bulletin (National Museum of Canada). Anthropological series. ; 18
J.C. Painter letter to Benjamin Lundy
No full textLetter from J.E. Painter to (presumably) Benjamin Lundy, answering a request for information about the history and operations of the Underground Railroad. Letter includes details of a story of an ex-slave transported on the Underground Railroad through Ohio and stories of the plight of other fugitive slaves crossing the Ohio River.
Benjamin Lundy (1789-1839) was a prominent Quaker abolitionist best known for his development of abolitionist periodicals. His "Genius of Universal Emancipation" was first published in 1821 from his home in Mt. Pleasant, Ohio, and enjoyed a wide circulation across the antebellum United States. In the 1820s, the young William Lloyd Garrison came to work for The Genius. Benjamin Lundy traveled widely seeking subscriptions to The Genius, giving talks about the anti-slavery movement, and observing and documenting the conditions of enslaved people across the Americas. He was also involved in the establishment of freed slave colonies in Mexico
Positron Annihilation In Triphenylphosphine Oxide Complexes: Positronium Inhibition Mechanism Involving Excitation Of Charge Transfer States
No full textPositronium formation in triphenylphosphine oxide and its lanthanide and hydrogen peroxide complexes have been characterized. The low probability of positronium formation observed has been attributed to a mechanism involving competition between charge transfer at large distances induced by the positron-molecular electron interaction and positronium formation during positron molecule scattering. The molecular site responsible for positronium formation has been identified. © 2008 Elsevier B.V. All rights reserved.4524-6249252Buckman, S.J., Sullivan, J.P., (2006) Nucl. Instr. Meth. Phys. Res. B, 247, p. 5Marler, J.P., Surko, C.M., (2005) Phys. Rev. A, 62, p. 062713(2003) Principles and Applications of Positron & Positronium Chemistry, , Jean Y.C., Mallon P.E., and Schrader D.M. (Eds), World Scientific, New Jersey, LondonMogensen, C.E., (1974) J. Chem. Phys., 60, p. 998Goworek, T., (1987) Phys. Stat. Sol., 9, p. 511(1995) Positron Spectroscopy of Solids, , Dupasquier A., and Mills Jr. A.P. (Eds), IOS Press, OhmsaMarques Netto, A., Máximo Bicalho, S.M.C., Filgueiras, C.A.L., Machado, J.C., (1985) Chem. Phys. Lett., 119, p. 507Klein, S.I., Barbieri, R.S., Marques Netto, A., Silva, M.E.S.R., Machado, J.C., (1990) J. Braz. Chem. Soc., 1, p. 80Marques Netto, A., Klein, S.I., Barbieri, R.S., Mauro, A.E., Magalhães, W.F., Machado, J.C., (1992) Mater. Sci. Forum, 105-110, p. 653Porto, A.O., Marques Netto, A., Magalhães, W.F., Carvalho, C.F., Machado, J.C., (1993) J. Phys.-Paris IV (Colloque C4, Supplément au Journal de Physique II), 3, p. 205Graúdo, J.E.J.C., Filgueiras, C.A.L., Marques-Netto, A., Batista, A.A., (2000) J. Braz. Chem. Soc., 11, p. 237Porto, A.O., Magalhães, W.F., Fernandes, N.G., Machado, J.C., (1997) Chem. Phys., 221, p. 199Machado, J.C., Porto, A.O., Carvalho, C.F., Magalhães, W.F., Maruqes-Netto, A., (1993) J. Phys. IV (Paris), 3, p. 201Porto, A.O., Magalhães, W.F., Machado, J.C., (1997) Chem. Phys. Lett., 266, p. 329Faustino, W.F., de Sá, G.F., Malta, O.L., Soares, M.C.F., Windmöller, D., Machado, J.C., (2006) Chem. Phys. Lett., 424, p. 63Machado, J.C., de Lima, G.M., Oliveira, F.C., Marzano, I.M., (2006) Chem. Phys. Lett., 418, p. 292Ito, Y., Suzuki, T., (2000) Radiat. Phys. Chem., 58, p. 743Perrin, D.D., Amarego, W.L.F., (1988) Purification of Laboratory Chemicals. third edn., , Pergamon Press, OxfordCopley, D.B., Fairbrother, F., Miller, J.R., Thompson, A.C., (1964) Proc. Chem. Soc. Sept., p. 300Cousins, D.R., Hart, F.A., (1967) J. Inorg. Nucl. Chem., 29, p. 1745Kirkegaard, P., Eldrup, M., (1974) Comput. Phys. Commun., 7, p. 401(1988) Studies in Physical and Theoretical Chemistry 57: Positron and Positronium Chemistry, , Schrader D.M., and Jean Y.C. (Eds), Elsevier, Amsterdam (Chapter 4)Faustino, W.M., Malta, O.L., de Sá, G.F., (2006) Chem. Phys. Lett., 429, p. 595Faustino, W.M., Malta, O.L., Teotônio, E.E.S., Brito, H.F., Simas, A.M., de Sá, G.F., (2006) J. Phys. Chem. A, 110, p. 2510Baures, P.W., Silverton, J.V., (1990) Acta Cryst. C, 46, p. 71
Anomalous Tracks Observed In Uranium Loaded Nuclear Emulsions
No full textAnomalous tracks observed in uranium loaded emulsions are identified as alpha ray tracks emitted during the drying stage of the emulsions. Consequences of the presence of those tracks are discussed. © 1980.1723587589J.C. Hadler Neto, C.M.G. Lattes, A. Marques, M.D. Marques, D.A.B. Serra and G. Bigazzi, to be publishedDemers, (1955) Ionographie (Les Émulsions Nucléaires), p. 341. , Les Press Universitaires de Montreal, OttawaDe Carvalho, (1964) Progress in nuclear techniques and instrumentation, 1. , 3rd ed., F.J.M. Farley, North-Holland, Amsterda
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