82 research outputs found
Estudos sobre efeitos do boro na cana-de-açúcar (Saccharum sp.) cultivada em alguns solos do município de Piracicaba
No full textForam estudados os efeitos do boro na cana-de-açúcar var. CB 41/14, por meio de ensaios de campo e em vasos, através da administração de doses crescentes do elemento a seis tipos de solos do município de Piracicaba, SP, mapeados ao nível de séries. Nas condições de campo, os ensaios desenvolveram-se em solos das séries Sertãozinho, Ibitiruna, Pau d'Alho, Bairrinho, Luiz de Queiroz e Guamium (RANZANI et al., 1966). Em tais solos, já se conheciam os teores de boro em diversos horizontes (BRASIL SOBRINHO, 1965), constatandose haver alguns menos supridos no elemento em questão. As doses empregadas foram: 0, 10, 20, 30 e 40 kg/ha de bórax, que correspondem aproximadamente à adição de 0, 1, 2,3 e 4 kg/ha de B. No ensaio, foram incluídos tratamentos que consistiram na aplicação de duas doses de zinco (10 e 20 kg/ha de sulfato de zinco), uma combinação de boro e zinco (20 kg/ha de cada produto), e um tratamento com B, Cu, Fe, Zn, Mn e Mo, além da testemunha geral, sem adubação. No ensaio em vasos, empregou-se solo da série Ibitiruna, que havia apresentado o mais baixo teor de B nas determinações feitas por Brasil Sobrinho. Nos vasos (80 litros de capacidade), foram administradas as doses 0, 0,5,1, 2, 3 e 4 ppm B, pela adição de ácido bórico ao solo. Numa segunda experiência, empregou-se areia lavada de rio, em lugar de solo, aplicando-se nos vasos 0, 0,2, 0,4, 0,6, 0,8, 1,6, 3,2 e 6,4 ppm B. Foram coletados dados de produção de cana, calculado o açúcar provável do caldo e determinado o teor de boro em folhas de três posições na planta (+3, +1 e -1), em amostragens feitas aos cinco meses de idade, nos ensaios de campo, e aos cinco e oito meses, quando em vasos. Paralelamente, os solos estudados foram submetidos ao teste biológico do girassol (COLWELL, 1943), num esquema em que foram incluídas séries com doses crescentes de boro (0, 0,1, 0,2, 0,4, 0,6, 1,2 e 2,4 ppm). Nos ensaios de campo com cana-de-açúcar, constatou-se que o boro e demais nutrientes estudados não influenciaram a produção de cana e o teor de açúcar provável. A análise foliar do boro revelou teores muito elevados, que indicam um suprimento em boro, nesses solos, acima do normal. Não houve respostas nos teores foliares à aplicação de doses crescentes de B aos solos. No ensaio em vasos, em condições controladas, o boro aplicado ao solo não proporcionou aumentos nas produções de cana e de açúcar provável, induzindo, entretanto, efeito depressivo em ambos os casos, pela dose mais elevada (8 ppm B). Os teores de B nas folhas de cana, aos cinco meses de idade, cresceram com as doses administradas ao solo, alcançando níveis muito elevados (289 ppm) no tratamento 8 ppm B, com a média geral atingindo 124,4 ppm B. Aos oito meses, os valores foram bem mais baixos (média geral 61,4 ppm B) e não seletivos em relação à dose de boro aplicada. A melhor época de amostragem estaria entre cinco e oito meses. As três posições de folha estudadas mostraram-se eficientes em relação às doses de boro aplicadas ao solo, sendo que +3 e +1 deram valores mais altos do que -1. O teste biológico do girassol indicou serem os solos estudados ligeiramente deficientes ou não deficientes em boro, destacando-se o solo da série Pau dAlho, por não ter dado reação à adição do micronutriente em apreço. Essas conclusões concordam com os resultados obtidos nos ensaios com a cana-de-açúcar.The author studied the effects of boron on the behaviour of sugar cane var. CB 41/14 through field and pot experiments with increasing doses of this micronutrient to six soils of Piracicaba county, SP, Brazil, classified at serial levels. In field trials, boron did not influence cane growth nor sugar content. Leaf analysis showed high levels independently of the amount of boron added to the soils, revealing their good supplying. Pot trials showed the same trends, but 8 ppm B added to the poorest soil reduced both cane and sugar production. Chemical analysis with leaves 5 months old revealed increasing contents according to the amounts given to the soils. With leaves 8 months old, the levels were lower and non selective with respect to the boron amounts applied. The best time to sample leaves for analysis seems to be 5 months, in the conditions of the study. Biologic tests with sunflower (Colwell method) indicated that the soils tried were slightly or non deficient in boron
Women, sources, and rhetoric in George Pettie’s A petite pallace of Pettie his pleasure
No full text[À l'origine dans / Was originally part of : Thèses et mémoires - FAS - Département d'études anglaises]Ce mémoire, Women, Sources, and Rhetoric in George Pettie’s A Petite Pallace of Pettie his Pleasure, étudie la collection de romans courts de l’anglais moderne intitulée A Petite Pallace of Pettie his Pleasure (1576) et l’identifie comme une collection pour les femmes et comme un précurseur du style euphuistique.
Le mémoire est constitué de trois chapitres. Dans le premier chapitre, j’analyse la position des femmes au début de l’Angleterre moderne, alors que A Petite Pallace est dédié aux femmes. Le deuxième chapitre traite des éléments structuraux de chaque histoire comprise dans la collection. Je relève également les modifications faites par l’auteur à des histoires d’origine afin de les adapter à ses lecteurs et afin d’attirer davantage d’attention. Le dernier chapitre porte principalement sur les figures de style utilisées par Pettie pour éblouir ses lecteurs et démontrer toute la richesse de la langue anglaiseThis thesis, Women, Sources, and Rhetoric in George Pettie’s A Petite Pallace of Pettie his Pleasure, studies the early modern English collection of novellas A Petite Pallace of Pettie his Pleasure (1576) and indentifies it as a collection for women and a forerunner of the euphuistic style.
The thesis consists of three chapters. In the first chapter I consider women’s position in early modern England, as A Petite Pallace is dedicated to ladies. The second chapter deals with structural elements of each story included in the collection. I also trace modifications made by the author to his source stories in order to adapt them for his readers and to attract more attention. The last chapter focuses on linguistic devices used by Pettie to dazzle his audience and to demonstrate the possibilities of the English language
Women, sources, and rhetoric in George Pettie’s A petite pallace of Pettie his pleasure
No full text[À l'origine dans / Was originally part of : Thèses et mémoires - FAS - Département d'études anglaises]Ce mémoire, Women, Sources, and Rhetoric in George Pettie’s A Petite Pallace of Pettie his Pleasure, étudie la collection de romans courts de l’anglais moderne intitulée A Petite Pallace of Pettie his Pleasure (1576) et l’identifie comme une collection pour les femmes et comme un précurseur du style euphuistique.
Le mémoire est constitué de trois chapitres. Dans le premier chapitre, j’analyse la position des femmes au début de l’Angleterre moderne, alors que A Petite Pallace est dédié aux femmes. Le deuxième chapitre traite des éléments structuraux de chaque histoire comprise dans la collection. Je relève également les modifications faites par l’auteur à des histoires d’origine afin de les adapter à ses lecteurs et afin d’attirer davantage d’attention. Le dernier chapitre porte principalement sur les figures de style utilisées par Pettie pour éblouir ses lecteurs et démontrer toute la richesse de la langue anglaiseThis thesis, Women, Sources, and Rhetoric in George Pettie’s A Petite Pallace of Pettie his Pleasure, studies the early modern English collection of novellas A Petite Pallace of Pettie his Pleasure (1576) and indentifies it as a collection for women and a forerunner of the euphuistic style.
The thesis consists of three chapters. In the first chapter I consider women’s position in early modern England, as A Petite Pallace is dedicated to ladies. The second chapter deals with structural elements of each story included in the collection. I also trace modifications made by the author to his source stories in order to adapt them for his readers and to attract more attention. The last chapter focuses on linguistic devices used by Pettie to dazzle his audience and to demonstrate the possibilities of the English language
Twenty-First-Century Arab-Shakespeare encounters : adaptation, conflict, conversion, and revolution
No full textCette thèse étudie les adaptations arabes de Macbeth, Hamlet, Richard III et La Nuit des rois par Shakespeare au cours de la première décennie du XXIe siècle. Les adaptations arabes de Shakespeare à l'étude marquent le tournant du siècle et un tournant dans la représentation du conflit entre l'Occident, incarné par les États-Unis, et le Moyen-Orient. Ils fournissent un témoignage théâtral vif des changements dont la région a été témoin en racontant l'avancée des transformations tant sur la scène sociopolitique que dans les productions théâtrales shakespeariennes. La thèse présente également une analyse de la
notion d'adaptation en tant que conversion. Le caractère transformateur de l'expérience théâtrale et l'acte de transposer un texte shakespearien d'une culture à une autre favorisent une conversion culturelle qui donne de nouvelles significations à Shakespeare, en tant qu’auteur, et au processus de réception, notamment dans un contexte transculturel.This dissertation examines Arab adaptations of Shakespeare’s Macbeth, Hamlet, Richard III, and Twelfth Night in the first decade of the twenty-first century. The Arab adaptations of Shakespeare under study mark the turn of the century and a turn in the representation of the conflict between the West, epitomized by the United States, and the Middle East. They provide a keen theatrical testimony to the changes which the region witnessed as they chronicle the progress of the transformations both on the sociopolitical scene and in the Shakespearean stage productions. The dissertation is also an examination of the notion of adaptation as conversion. The transformative nature of the theatrical experience and the act of transposing a Shakespearean text from one culture to another foster a cultural conversion that gives new meanings to Shakespeare as an author-function and to the process of reception, especially in a transcultural context
Correction: Overcoming barriers to NHS adoption of innovative IPC products: A qualitative study of SMEs in the Liverpool city region (PLoS One (2025) 20:9 (e0331688) DOI: 10.1371/journal.pone.0331688)
No full textThere are errors in the Author Contributions. The correct contributions are: Conceptualization: Rocío Villacorta Linaza, Janet Hemingway, Adam P. Roberts, Nicholas Feasey. Data curation: Rocío Villacorta Linaza. Formal analysis: Rocío Villacorta Linaza, Adam P. Roberts. Investigation: Rocío Villacorta Linaza, Daire Cantillon. Methodology: Rocío Villacorta Linaza, Daire Cantillon. Project administration: Rocío Villacorta Linaza, Daire Cantillon Writing – original draft: Rocío Villacorta Linaza. Writing – review & editing: Janet Hemingway, Adam P. Roberts, Becky Jones-Philips, Miriam Taegtmeyer, Richard L. Wright, Daire Cantillon, Maria Moore, Russell Dacombe, Ezekiel Boro, Aaron Argomandkhah, Carolina Velasco, Nicholas Feasey.</p
Effects of boron addition on the high temperature oxidation of MoSi<sub>2</sub> alloys
No full textBoron containing MoSi2 is a promising material for applications at high temperature, but the oxidation mechanism is still unclear. In this work, the high temperature (1100 °C) oxidation of B doped MoSi2 in synthetic air has been investigated. A (boro)silicate layer is formed on the surface of the alloy, which features a mixture of amorphous SiO2 and cristobalite. After an initial transient period, the oxidation kinetics follows a parabolic growth rate law. The growth rate constant of the oxide layer is enhanced by the boron in the alloy by 90 % per at.% B. The increase in growth rate is associated with boron mitigating the formation of cristobalite thereby promoting the formation of amorphous SiO2.Team Marcel HermansTeam Vera PopovichTeam Joris Di
Triple modifier effect on physical, optical and structural properties of boro tellurite zinc lithium glasses
No full textOptical studies on alkali-alkaline Dy3+-doped lead-alumino-boro-phosphate glasses for white LED’s application
No full textLanthanum lead boro-tellurite glasses doped with samarium trioxide for luminescent devices application
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