Gov. Thomas\u27 March

https://digitalcommons.library.umaine.edu/mmb-me/1737/thumbnail.jp

Zona Wisata Kawasan Wisata Alam Air Terjun Madakaripura, Kabupaten Probolinggo

Kabupaten Probolinggo memiliki keindahan wisata alam salah satunya berupa wisata air terjun. Wisata Alam Air Terjun Madakaripura termasuk dalam kawasan hutan lindung dan rawan bencana longsor sehingga pengembangannya membutuhkan pembagian zona wisata yang sesuai dengan karakteristik fisik kawasan wisata alam. Penelitian ini bertujuan menentukan zona wisata kawasan wisata alam Air Terjun Madakaripura, Kabupaten Probolinggo. Metode analisa yang digunakan dalam tahapannya adalah analisa Theoritical Deskriptif Kualitatif, teknik analisa Delphi dan analisa teknik Overlay. Hasil penelitian ini berupa zona wisata pada kawasan wisata alam Air Terjun Madakaripura, Kabupaten Probolinggo dengan melihat pada kondisi eksisting serta faktor-faktor yang mempengaruhi pengembangan kawasan wisata

Role of the cyclic lipopeptide massetolide A in biological control of Phytophthora infestans and in colonization of tomato plants by Pseudomonas fluorescens

Pseudomonas strains have shown promising results in biological control of late blight caused by Phytophthora infestans. However, the mechanism(s) and metabolites involved are in many cases poorly understood. Here, the role of the cyclic lipopeptide massetolide A of Pseudomonas fluorescens SS101 in biocontrol of tomato late blight was examined. Pseudomonas fluorescens SS101 was effective in preventing infection of tomato (Lycopersicon esculentum) leaves by P. infestans and significantly reduced the expansion of existing late blight lesions. Massetolide A was an important component of the activity of P. fluorescens SS101, since the massA-mutant was significantly less effective in biocontrol, and purified massetolide A provided significant control of P. infestans, both locally and systemically via induced resistance. Assays with nahG transgenic plants indicated that the systemic resistance response induced by SS101 or massetolide A was independent of salicylic acid signalling. Strain SS101 colonized the roots of tomato seedlings significantly better than its massA-mutant, indicating that massetolide A was an important trait in plant colonization. This study shows that the cyclic lipopeptide surfactant massetolide A is a metabolite with versatile functions in the ecology of P fluorescens SS101 and in interactions with tomato plants and the late blight pathogen P. infestans

Seis representaciones arquet?picas precolombinas (correspondencias con la narrativa hispanoamericana contempor?nea y creaci?n de minicuento)

175 p. Recurso Electr?nicoLa presente investigaci?n compila un corpus de representaciones arquet?picas a la luz de la teor?a sobre el inconsciente colectivo y los arquetipos planteados por Carl Gustav Jung. La configuraci?n de las representaciones fue realizada con mitos precolombinos, posterior a ello, a trav?s del m?todo de Gilbert Durand, denominado mitocr?tica, se comprob? la vigencia de las representaciones en cuentos de autores hispanoamericanos. As? mismo, se dise?? una unidad did?ctica para trasformar la ense?anza del mito en el grado noveno de la Instituci?n Educativa Alberto Castilla, con el fin de ampliar desde la teor?a de Mircea Eliade y de Carl Jung el concepto de mito, y el corpus de relatos le?dos por los estudiantes, para poder descubrir las convergencias arquet?picas, los atributos simb?licos y el car?cter sagrado que demuestran la relaci?n vigente entre mito y hombre. Finalmente, los estudiantes tuvieron la oportunidad de actualizar mitos, arquetipos y representaciones, mediante un proceso de escritura de minicuentos a trav?s del taller como espacio de aprendizaje, juego y creaci?n. Palabras Claves: Mito, Arquetipo, Mitocr?tica, Minicuento.The present investigation, compiles a corpus of representations archetypical in the light of theory about the collective unconscious and the archeotype raised by Carls Gustav Jung. The configuration of the representations were presented with pre-columbian myths, subsequently to it through the method of Gilbert Duran called mitochritic, was verified the validity of the representation in the stories of Hispanic -American authors. Likewise, a didactic unit was designed to transform the teaching of myth in the ninth grade of the educational institution Alberto Castilla, in order to expand from the theory of Mircea Eliade and of Carl Jung the concept of myth, and the corpus of stories read by the students, in order to discover the archetypal convergences, the symbolic attributes and the sacred character that demonstrates the current relationship between myth and man. Finally the students had the opportunity to update myths, archetypes and representations, through a process of writing mini-stories through the workshop as a space for learning, play and creation. Keywords: Myth, Archetype, Mitocritical, Mini-stories

BIOTECHNOLOGY ISSUES FOR DEVELOPING COUNTRIES - New biotechnological applications of coconuts

Coconut is a major crop of many poor nations. The present paper shows with inexpensive fluorescence microscopy of the enhanced green fluorescent protein (EGFP), that coconut water has the capability of synthesizing proteins from recombinant DNA vectors. After only 4 hrs of 100 pM application of the EGFP plasmid (pEGFP), a strong fluorescent signal was detected with an off-the-shelf, low-tech CCD webcam. Since natural coconut water is sterile, this heat-stable delivery system may be a good option for the dissemination of food supplements and pharmaceuticals in poor nations. As expensive substances could be expressed in coconut water, through bioreactor technology or micropropagation, the concepts presented here may prove invaluable to the economic and social advancement of many developing countries

Supersymmetric Kaluza-Klein reductions of M-waves and MKK-monopoles

We investigate the Kaluza-Klein reductions to ten dimensions of the purely gravitational half-BPS M-theory backgrounds: the M-wave and the Kaluza-Klein monopole. We determine the moduli space of smooth (supersymmetric) Kaluza-Klein reductions by classifying the freely-acting spacelike Killing vectors which preserve some Killing spinor. As a consequence we find a wealth of new supersymmetric IIA configurations involving composite and/or bound-state configurations of waves, D0 and D6-branes, Kaluza-Klein monopoles in type IIA and flux/nullbranes, and some other new configurations. Some new features raised by the geometry of the Taub-NUT space are discussed, namely the existence of reductions with no continuous moduli. We also propose an interpretation of the flux 5-brane in terms of the local description (close to the branes) of a bound state of D6-branes and ten-dimensional Kaluza-Klein monopoles.Comment: 36 pages (v2: Reference added, "draft" mode disabled; v3: two singular reductions discarded, appendix on spin structures added, references updated

Estudo qu?mico e de atividade biol?gica de Plectranthus neochilus Schltr. (Lamiaceae)

O trabalho apresentado nesta disserta??o descreve o estudo fitoqu?mico e de atividade biol?gica das folhas e caules e flores de Plectranthus neochilus Schltr., esp?cie pertencente ? fam?lia Lamiaceae. A planta ? uma erva arom?tica conhecida popularmente no Brasil como ?boldo? ou ?boldo-gamb??, e assim como as esp?cies P. barbatus Andrews (?boldo-brasileiro") e P. ornatus Codd. ("boldinho"), tem o ch? de suas folhas utilizadas na medicina tradicional no tratamento de insufici?ncia hep?tica e dispepsia, em substitui??o a Peumus boldus Molina (?boldo-do-chile?). O estudo fitoqu?mico do extrato hex?nico das folhas e caules de P. neochilus forneceu dois triterpenos: ?-amirina (PN1) e friedelina (PN2). PN1 foi isolada como um ?ster de ?cido graxo ligado na posi??o C-3. Deste extrato foi obtida tamb?m a mistura dos ester?ides sitosterol e estigmasterol (PN3). O estudo fitoqu?mico conduzido com o extrato em acetato de etila das folhas e caules forneceu a flavona metoxilada nas posi??es C-6 e C-7, a cirsimartina (PN4). Todos os compostos obtidos foram descritos pela primeira vez na esp?cie. A elucida??o estrutural dos compostos isolados, baseou-se na an?lise espectrosc?pica de RMN 1D, CLAE, ESI e por compara??o com dados encontrados na literatura. O extrato metan?lico das folhas e caules de P. neochilus mostrou significativa atividade antioxidante quando avaliado pelo m?todo de DPPH, seguido pelo extrato em acetato de etila e hex?nico. Foi avaliado tamb?m o extrato metan?lico das flores da esp?cie, que apresentou atividade inferior aquele observado para o extrato metan?lico das folhas e caule, sendo estas atividades confirmadas pelo conte?do fen?lico dos extratos. A atividade anticolinester?sica dos extratos das folhas e caules e das flores de P. neochilus foi avaliada, sendo observada a inibi??o da enzima acetilcolinesterase para todos os extratos pesquisados.Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Qu?mica, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2011.ABSTRACT The present work describes the phytochemical and pharmacological investigation on extracts of the leaves and stems and flowers of the species Plectranthus neochilus Schltr. belonged to the family Lamiaceae. The plant is aromatic herb popularly known in Brazil as ?boldo? or ?boldo-gamb??, and as the species P. barbatus Andrews (?boldo-brasileiro") e P. ornatus Codd. ("boldinho"), according to ethnopharmacological survey, is often used in the treatment of hepatic insufficiency and dyspepsia, replacing the Peumus boldus Molina (?boldo-do-chile?). The phytochemical investigation of the hexanic extract of the P. neochilus leaves and stems yielded two triterpenes: ?-amyrin (PN1) e friedelin (PN2). The compound ?-amirin was isolated as a fatty acid ester in position C-3. In this extract was also obtained the mixture of the steroids sitosterol and stigmasterol (PN3). The phytochemical study conducted with the ethyl acetate extract of the leaves and stems gave the methoxy flavone at positions C-6 and C-7, the cirsimartin (PN4). All compounds obtained were first described in the species. Structural elucidation of isolated compounds was based on spectroscopic analysis of 1D NMR, HPLC, ESY and by comparison with data found in literature. The methanol extract of leaves and stems of P. neochilus showed significant antioxidant activity when evaluated by the DPPH method, followed by the extract in ethyl acetate and hexane. We also evaluate the methanol extract of flowers of the species that showed activity lower than that observed for the methanolic extract from leaves and stems, and these activities confirmed for the content of phenolic extracts. The anticholinesterase activity of extracts of leaves and stems and flowers of P. neochilus was evaluated and found to inhibit the enzyme acetylcholinesterase to all extracts studied

LEITURA EM L?NGUA INGLESA A LUZ DOS G?NEROS TEXTUAIS MULTIMODAIS: AS TIRAS NO ENSINO FUNDAMENTAL II

Esse artigo discorrer? sobre propostas pedag?gicas pelo qual o aluno-leitor do ensino fundamental II poder? ser inserido, visando a utiliza??o dos g?neros textuais multimodais (GTM), a exemplo das tiras, nas aulas de l?ngua inglesa (LI) e pr?ticas de leitura que o levar? a constru??o de sentindo. A multimodalidade aciona no leitor meios para que ele enxergue al?m do texto escrito, trazendo e interpretando a linguagem imag?tica no contexto dos g?neros textuais (GT), dando o alcance para a compreens?o daqueles que n?o dominem essa segunda l?ngua com flu?ncia. Para fins te?ricos, iremos apresentar as defini??es de Ramos (2017), no que diz respeito aos tipos de tiras, formatos, meios em que s?o expostas etc. No que se refere aos GT exploraremos as teorias de Rojo (2017), Marcuschi (2008) e Dion?sio (2011), al?m de N?brega (2016), dando-nos caminhos e exemplos sobre as pr?ticas de leituras em LI. Para tanto, temos ainda como orienta??o a Base Nacional Comum Curricular (2017), documento qual orienta escolas e professores na pr?tica escolar

Influ?ncia de ?ons Mn2+ na depress?o de quartzo e espessartita em gondito de mangan?s.

Programa de P?s-Gradua??o em Engenharia Mineral. Departamento de Engenharia de Minas, Escola de Minas, Universidade Federal de Ouro Preto.A flota??o pode ser usada para a concentra??o de min?rios de mangan?s de baixo teor, assim como se estabeleceu para os min?rios de ferro tamb?m de baixo teor, pois se adequa ao processamento de min?rios complexos, com gangas silicatadas, consider?vel propor??es de ?xidos de ferro e wad, al?m da granulometria fina para libera??o. A literatura reporta estudos sobre o emprego da flota??o como t?cnica para concentra??o do min?rio de mangan?s de baixo teor, mas pouco se exploram os fundamentos do processo, como a influ?ncia de esp?cies i?nicas sobre o comportamento da ganga. Assim, o foco desta pesquisa foi analisar o comportamento de quartzo e espessartita quando condicionados na presen?a e aus?ncia de ?ons Mn2+ al?m de depressores e coletores. As elevadas propor??es de quartzo (acima dos 50%) e espessartita nos min?rios de mangan?s de baixo teor caracterizam os chamados gonditos e tal fato se imp?e como dificuldade para concentra??o do min?rio. Estudos de microflota??o desta pesquisa apontaram que o pH 10 foi determinante pois, para o quartzo condicionado com silicato de s?dio neste pH, obteve-se redu??o de flotabilidade de 12,97%, enquanto para espessartita tal redu??o foi de 33,85%. ?ons Al3+ e Mn2+ superficiais na espessartita podem atuar como pontos preferenciais de ancoragem de esp?cies como SiO(OH)3 ? e Si4O6(OH)6 2-, que se adsorvem por mecanismos de natureza qu?mica. A ordem de adi??o entre o depressor e Mn2+ mostrou import?ncia, pois o ?on adicionado antecipadamente elevou a depress?o dos minerais. O coletor amida associado ao silicato de s?dio levou aos resultados com menores recupera??es para quartzo e espessartita. Por outro lado, o mesmo coletor, com silicato de s?dio e na presen?a de ?ons Mn2+ foi o que proporcionou a melhor flotabilidade da pirolusita. No entanto, ao considerar apenas a adi??o de coletores, notou-se que o oleato de s?dio se posicionou como o melhor por recuperar 84,44% da pirolusita. Na fase de avalia??o de rotas para concentra??o do gondito, como objetivo secund?rio, a flota??o em bancada com oleato de s?dio se assemelhou ?quela com amida de ?cido graxo. A adi??o de Mn2+ ap?s o silicato de s?dio mostrou melhora com a redu??o de mangan?s e simult?neo aumento da s?lica no rejeito, indicativo de depress?o seletiva do quartzo. De outro modo, quando os ?ons Mn2+ foram adicionados antes do silicato de s?dio, elevou-se mangan?s e s?lica no rejeito, fruto de prov?vel depress?o preferencial da espessartita. Oleato de s?dio (500 g/t) com Mn2+ (500 g/t) adicionados antecipadamente ao silicato de s?dio levaram ? melhor recupera??o de mangan?s no concentrado. J? a amida pareceu influenciar menos na flotabilidade da s?lica, contribuindo para maior recupera??o desse composto no rejeito. A concentra??o magn?tica como etapa rougher mostrou ser vi?vel, pois se obteve recupera??es de 92,48% (22,84% Mn) e 90,74% (22,25% Mn) para as faixas de - 147 a 38 ?m e -38 ?m (?lama?), respectivamente para intensidade de campo de 15.500 e 12.000 Gauss.Flotation can be used for the concentration of low-grade manganese ores, as was established for low-grade iron ores, as it is suitable for processing complex ores with silicated gangue, with considerable proportion of iron oxides and wad, besides the fine granulometry to liberation. The literature reports the flotation as a technique able to concentrate the low-grade manganese but doesn't explore much the fundamentals of the process, such as the influence of ionic species on the gangue minerals behavior. Thus, the research focus was to study the effect of Mn2+ on quartz and spessartine, as assisting the depressor reagents. Large quantities of certain minerals associated with gondite, such as quartz (above 50%) and spessartine shows the difficulties to concentrate this ore. However, microflotation studies showed that pH 10 was determinant, since, for quartz conditioned with sodium silicate in this pH, the floatability reduction was equal to 12.97%, while for spessartine such reduction was 33.85%. Superficial Al3+ and Mn2+ ions, not hydroxylated at pH 10, can act as anchor points for species such as SiO (OH)3 - and Si4O6(OH)6 2-, able to adsorb on the mineral surface by chemical mechanisms. The addition order between the depressor reagent and Mn2+ showed to be significant, in which the addition of the ion acts to determining the more effectively minerals depression. The fatty acid amide collector associated with sodium silicate led to results with lower recoveries for quartz and spessartine. Whereas the same collector, with sodium silicate and in the presence of Mn2+ ions, provided the best pyrolusite recovery. However, considering only the collectors' addition was noted that sodium oleate was the best having to recovered 84.44% of pyrolusite. In the route evaluation stage for gondite concentration, as a secondary objective, bench flotation results using sodium oleate was similar to that with fatty acid amide. The Mn2+ additions after sodium silicate showed improvement besides the reduction of manganese losses to tailings and simultaneously increase of silica in the same product, which may only be due to quartz depression. On the other hand, when Mn2+ ions were added before sodium silicate, manganese and silica were increased in the tailings, probably due to the preferential spessartine depression. Sodium oleate (500 g/t) with Mn2+ (500 g/t) added before sodium silicate led to better manganese recovery in the concentrate. Fatty acid amide seemed to have less influence on silica floatability, contributing to a greater recovery of this compound in the tailing. The gondite magnetic concentration (rougher step) showed to be viable, recoveries of 92.48% (22.84% Mn) and 90.74% (22.25% Mn) to field magnetic of 15,500 and 12,000 Gauss, respectively