Academic literature on the topic 'Wood anatomy. eng'

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Journal articles on the topic "Wood anatomy. eng"

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Visscher, George E., and Richard Jagels. "SEPARATION OF METASEQUOIA AND GLYPTOSTROBUS (CUPRESSACEAE) BASED ON WOOD ANATOMY." IAWA Journal 24, no. 4 (2003): 439–50. http://dx.doi.org/10.1163/22941932-90000348.

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The wood anatomy of Metasequoia is similar to that of Glyptostrobus. Past descriptions of these woods have reported conflicting separation features. Using an increased sample size we have provided updated descriptions of these woods. We also review previously published criteria and discuss their validity. We introduce new characters (presence of ray cell separation and number of cells per square millimeter in transverse section of earlywood) and discuss the relative merit of these compared to previously described characters: arrangement of cross-field pits, features of the horizontal end walls
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Román-Jordán, Elena, Luis G. Esteban, Paloma de Palacios, and Francisco G. Fernández. "Wood anatomy of Cupressus and its relation to geographical distribution." IAWA Journal 37, no. 1 (2016): 48–68. http://dx.doi.org/10.1163/22941932-20160120.

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The wood anatomy of 14 species of Cupressus was studied to determine whether there is a pattern of wood anatomical diversity between the species from the North and Central American (western) region and the Eurasian (eastern) region. Xanthocyparis vietnamensis and Chamaecyparis nootkatensis (syn. Xanthocyparis nootkatensis) were also studied to compare their wood anatomy, given their recent inclusion by some authors in Cupressus. The arrangement of the axial parenchyma, morphology of the transverse end walls of the axial parenchyma, presence of ray tracheids, typology of the end walls of the ra
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de Palacios, Paloma, Luis G. Esteban, Francisco G. Fernández, Alberto García-Iruela, María Conde, and Elena Román-Jordán. "Comparative wood anatomy of Juniperus from Macaronesia." IAWA Journal 35, no. 2 (2014): 186–98. http://dx.doi.org/10.1163/22941932-00000059.

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The wood anatomy of the three species of Juniperus occurring in Macaronesia is compared for the first time using representative samples of each species collected in its natural region of provenance: J. cedrus Webb & Berthel and J. phoenicea L. var. canariensis Guyot, in the Canary Islands, and J. brevifolia (Seub.) Antoine, in the Azores. The three species are anatomically similar, although some qualitative differences were observed: distribution of axial parenchyma very scarce in J. phoenicea compared with the other two species, presence of crassulae only in J. phoenicea, presence of toru
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Carlquist, Sherwin. "How wood evolves: a new synthesis." Botany 90, no. 10 (2012): 901–40. http://dx.doi.org/10.1139/b2012-048.

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Recent advances in wood physiology, molecular phylogeny, and ultrastructure (chiefly scanning electron microscopy, SEM), as well as important new knowledge in traditional fields, provide the basis for a new vision of how wood evolves. Woody angiosperms have, in the main, shifted from conductive safety to conductive efficiency (with many variations and modifications) and from ability to resist cavitation (low vulnerability) to ability to refill vessels. The invention of the vessel was a kind of dimorphism (vessel elements plus tracheids) that permitted division of labor and many kinds of wood r
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Roig, Fidel A. "Comparative Wood Anatomy of Southern South American Cupressaceae." IAWA Journal 13, no. 2 (1992): 151–62. http://dx.doi.org/10.1163/22941932-90001263.

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The wood anatomy is described for the Cupressaceae indigenous to southem South America: Austrocedrus chilensis, Pilgerodendron uviferum and Fitzroya cupressoides. The abundance and distributional pattern of axial parenchyma within each annual ring, height, and the presence or absence of nodules in the end walls of ray parenchyma are all useful anatomical features for distinguishing between the three species. Physical characteristics such as odour and heartwood colour also can be used to separate these species. Axial parenchyma cell length and tracheid length show considerable interspecific var
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Rosner, Sabine. "Hydraulic and biomechanical optimization in norway spruce trunkwood – a review." IAWA Journal 34, no. 4 (2013): 365–90. http://dx.doi.org/10.1163/22941932-00000031.

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Secondary xylem (wood) fulfills many of the functions required for tree survival, such as transport of water and nutrients, storage of water and assimilates, and mechanical support. The evolutionary process has optimized tree structure to maximize survival of the species, but has not necessarily optimized the wood properties needed for lumber. Under the impact of global warming, knowledge about structure-function relationships in tree trunks will become more and more important in order to prognosticate survival prospects of a species, individuals or provenances. Increasing our knowledge on fun
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Esteban, Luis García, Paloma de Palacios, Francisco García Fernández, and Ruth Moreno. "Wood Anatomy Of The Genus Abies A Review." IAWA Journal 30, no. 3 (2009): 231–45. http://dx.doi.org/10.1163/22941932-90000217.

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The literature on the wood anatomy of the genus Abies is reviewed and discussed, and complemented with a detailed study of 33 species, 1 subspecies and 4 varieties. In general, the species studied do not show diagnostic interspecific differences, although it is possible to establish differences between groups of species using certain quantitative and qualitative features.The marginal axial parenchyma consisting of single cells and the ray parenchyma cells with distinctly pitted horizontal walls, nodular end walls and presence of indentures are constant for the genus, although these features al
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Lenz, Patrick, Marie Deslauriers, Chhun-Huor Ung, John MacKay, and Jean Beaulieu. "What do ecological regions tell us about wood quality? A case study in eastern Canadian white spruce." Canadian Journal of Forest Research 44, no. 11 (2014): 1383–93. http://dx.doi.org/10.1139/cjfr-2014-0206.

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There is a growing interest in improving knowledge on wood quality of forest resources to allow for an end-product oriented supply for the wood-processing industry. We investigated the differences of white spruce (Picea glauca (Moench) Voss) wood traits from 13 ecological regions of the eastern Canadian province of Quebec and identified climatic and geographic variables and tree characteristics that may help predict wood traits in novel approaches to forest inventories. One hundred and eleven wood disks were used to determine wood traits that are related to wood anatomy and to mechanical use o
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Piesschaert, Frederic, Lennart Andersson, Steven Jansen, Steven Dessein, Elmar Robbrecht, and Erik Smets. "Searching for the taxonomic position of the African genus Colletoecema (Rubiaceae): morphology and anatomy compared to an rps16-intron analysis of the Rubioideae." Canadian Journal of Botany 78, no. 3 (2000): 288–304. http://dx.doi.org/10.1139/b00-002.

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The morphology and anatomy of the African monospecific genus Colletoecema E. Petit (Rubiaceae) is documented and illustrated (including wood anatomy, pollen morphology, gynoecial and exotestal structure). Morphological and anatomical comparison shows that Colletoecema differs in many aspects from the Psychotrieae (e.g., wood anatomy, seed structure). Consequently, the genus' provisional position in the Psychotrieae cannot be maintained. Morindeae, the second tribe Colletoecema has been associated with, has a different gynoecial structure. The oily endosperm and large embryo of Colletoecema is
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Cichan, Michael A. "Conductance in the wood of selected Carboniferous plants." Paleobiology 12, no. 3 (1986): 302–10. http://dx.doi.org/10.1017/s0094837300013804.

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Specific conductance was calculated for secondary xylem in seven Carboniferous stem taxa utilizing an equation derived from the Hagen-Poiseuille relation. Arborescent and lianoid representatives of major pteridophytic (Calamitaceae, Lepidodenraceae, Sphenophyllaceae) and gymnospermous (Cordaitaceae, Medullosaceae) groups were examined. In the calamite Arthropitys communis and the seed plant Cordaites (Cordaixylon sp. and Mesoxylon sp.), conductance corresponded approximately to the low end of the range for both extant conifers and angiosperms. A substantially higher conductance was determined
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Dissertations / Theses on the topic "Wood anatomy. eng"

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Gonçalves, Thaís Alves Pereira 1982. "Anatomia do lenho e do carvão de espécies arbóreas do Cerrado no Estado de São Paulo, Brasil /." Botucatu : [s.n.], 2010. http://hdl.handle.net/11449/88517.

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Resumo: A Antracologia é uma ciência que se baseia na anatomia da madeira para realizar a análise e identificação de carvão vegetal. No Brasil, ela visa tradicionalmente obter dados paleoecológicos e paleoetnobotânicos, mas também conservacionistas e tecnológicos. As análises antracológicas são possíveis porque a estrutura do lenho se mantém no carvão, entretanto, variações morfométricas podem ocorrer. O presente estudo visa contribuir para um melhor entendimento do efeito da carbonização no lenho através da análise estrutural da anatomia antes e após carbonização. A escolha de espécies do cer
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Goulart, Selma Lopes. "Anatomia comparada do lenho de raiz e caule de Lippia salviaefolia Cham. E Aegiphila sellowiana Cham.(Verbenaceae) de área de cerrado do Estado de São Paulo /." Botucatu : [s.n.], 2006. http://hdl.handle.net/11449/88133.

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Orientador: Carmem Regina Marcati<br>Banca: Verônica Angylossy<br>Banca: Rita de Cássia Sindronia Maimoni Rodella<br>Resumo: Estudos comparativos da anatomia do lenho de raiz e caule em espécies brasileiras são escassos, porém de grande importância, uma vez que as variações estruturais entre os dois órgãos são indispensáveis para o entendimento das adaptações ecológicas das espécies. Neste trabalho estudou-se a anatomia comparada do lenho de raiz e caule das espécies Lippia salviaefolia Cham. e Aegiphila sellowiana Cham., da família Verbenaceae. As espécies ocorrem em reserva particular de cer
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Angélico, Talita dos Santos. "Anatomia do lenho de caule e raiz de plantas jovens de Enterolobium contortisiliquum (VELL.) Morong (Fabaceae-mimosoideae) crescendo em diferentes condições edáficas /." Botucatu : [s.n.], 2010. http://hdl.handle.net/11449/95084.

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Orientador: Carmen Regina Marcati<br>Banca: Sílvia Rodrigues Machado<br>Banca: Gustavo Habermann<br>Banca: Rivete Silva de Lima<br>Resumo: Enterolobium contortisiliquum (Vell.) Morong., pertencente à família Fabaceae-Mimosoideae e conhecido popularmente como tamboril ou timboúva, apresenta crescimento rápido no campo e por esse motivo é utilizado em reflorestamento de áreas degradadas em plantios mistos. Estudo sobre a anatomia do lenho de caules de plantas de E. contortisiliquum, adultas e de mesma idade, revelou que plantas que cresceram sobre Nitossolo Vermelho (NV) apresentaram vasos de ma
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Sonsin-Oliveira, Julia 1980. "Anatomia da madeira de espécies de Cerrado sensu lato do Estado de São Paulo /." Botucatu : [s.n.], 2010. http://hdl.handle.net/11449/100927.

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Resumo: O cerrado é o considerado a savana mais rica em biodiversidade do mundo, possui uma flora estimada em 7000 espécies, sendo 44% endêmicas, além de ser um dos 25 "hotspots" globais. Devido a grande importância desse bioma, esse trabalho apresenta as características anatômicas macro e microscópicas de 97 espécies arbóreas e arbustivas que ocorrem no cerrado sensu lato (s.l.), procurando identificar padrões estruturais comuns na madeira, e peculiares às espécies que ocorrem nas diferentes fitofisionomias, cerrado sensu stricto (s.s.), cerradão e zona ripária. Adicionalmente, foi caracteriz
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Oliveira, Julia Sonsin. "Variações estruturais do lenho de espécies de cerrado do estado de São Paulo /." Botucatu : [s.n.], 2007. http://hdl.handle.net/11449/95082.

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Resumo: Informações sobre características anatômicas do xilema secundário de espécies de cerrado são escassas, porém de grande importância, uma vez que o cerrado é influenciado por fatores ambientais diversos e as espécies que aí se encontram apresentam características morfológicas externas e internas peculiares. Estes estudos permitem compreender a influência dos fatores ambientais nas características estruturais do lenho. O presente trabalho tem por objetivo verificar os padrões e as variações estruturais do lenho, bem como determinar possíveis características de valor taxonômico e ecológico
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Woxblom, Lotta. "Warp of sawn timber of Norway spruce in relation to end-user requirements : quality, sawing pattern and economic aspects /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5860-9.pdf.

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Book chapters on the topic "Wood anatomy. eng"

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van Willigen, J. D. "Anatomie en fysiologie van de edentate mond." In De volledige gebitsprothese in woord en beeld. Bohn Stafleu van Loghum, 2001. http://dx.doi.org/10.1007/978-90-313-6503-6_1.

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Lace-Costigan, Gemma. "Perceptions of Play." In Data Analytics in Medicine. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1204-3.ch063.

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Playful and kinaesthetic learning approaches are used in numerous early years (birth to 5 years old) learning environments, however studies in HE STEM disciplines are uncommon. This study aimed to explore the use of Play-Doh in an undergraduate anatomy module as a method of enhancing engagement. 63 students attended the ‘kinaesthetic play' lecture, where students worked in teams to make a variety of epithelial cell types using Play-Doh. Before and after the activity, students were asked to ‘choose one word to describe how you feel'. Before the activity, 48.3% of responses were negative (E.g. confused, worried, childish). However, after the activity not a single negative response was recorded. 98% of students reported that they enjoyed the activity and 84% reported that the activity increased their understanding. This data suggests a utility for kinaesthetic playful practice in STEM teaching. Overcoming initial student perceptions towards alternative teaching practices is a challenge to be considered during session design.
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