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Search Results: 1 - 10 of 140627 matches for " Norma K. Murace "
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Genome of Herbaspirillum seropedicae Strain SmR1, a Specialized Diazotrophic Endophyte of Tropical Grasses
Fábio O. Pedrosa ,Rose Adele Monteiro,Roseli Wassem,Leonardo M. Cruz,Ricardo A. Ayub,Nelson B. Colauto,Maria Aparecida Fernandez,Maria Helena P. Fungaro,Edmundo C. Grisard,Mariangela Hungria,Humberto M. F. Madeira,Rubens O. Nodari,Clarice A. Osaku,Maria Luiza Petzl-Erler,Hernán Terenzi,Luiz G. E. Vieira,Maria Berenice R. Steffens,Vinicius A. Weiss,Luiz F. P. Pereira,Marina I. M. Almeida,Lysangela R. Alves,Anelis Marin,Luiza Maria Araujo,Eduardo Balsanelli,Valter A. Baura,Leda S. Chubatsu,Helisson Faoro,Augusto Favetti,Geraldo Friedermann,Chirlei Glienke,Susan Karp,Vanessa Kava-Cordeiro,Roberto T. Raittz,Humberto J. O. Ramos,Enilze Maria S. F. Ribeiro,Liu Un Rigo,Saul N. Rocha,Stefan Schwab,Anilda G. Silva,Eliel M. Souza,Michelle Z. Tadra-Sfeir,Rodrigo A. Torres,Audrei N. G. Dabul,Maria Albertina M. Soares,Luciano S. Gasques,Ciela C. T. Gimenes,Juliana S. Valle,Ricardo R. Ciferri,Luiz C. Correa,Norma K. Murace,Jo?o A. Pamphile,Eliana Valéria Patussi,Alberto J. Prioli,Sonia Maria A. Prioli,Carmem Lúcia M. S. C. Rocha,Olívia Márcia N. Arantes,Márcia Cristina Furlaneto,Leandro P. Godoy,Carlos E. C. Oliveira,Daniele Satori,Laurival A. Vilas-Boas,Maria Angélica E. Watanabe,Bibiana Paula Dambros,Miguel P. Guerra,Sandra Marisa Mathioni,Karine Louise Santos,Mario Steindel,Javier Vernal,Fernando G. Barcellos,Rubens J. Campo,Ligia Maria O. Chueire,Marisa Fabiana Nicolás,Lilian Pereira-Ferrari,José L. da Concei??o Silva,Nereida M. R. Gioppo,Vladimir P. Margarido
PLOS Genetics , 2011, DOI: 10.1371/journal.pgen.1002064
Abstract: The molecular mechanisms of plant recognition, colonization, and nutrient exchange between diazotrophic endophytes and plants are scarcely known. Herbaspirillum seropedicae is an endophytic bacterium capable of colonizing intercellular spaces of grasses such as rice and sugar cane. The genome of H. seropedicae strain SmR1 was sequenced and annotated by The Paraná State Genome Programme—GENOPAR. The genome is composed of a circular chromosome of 5,513,887 bp and contains a total of 4,804 genes. The genome sequence revealed that H. seropedicae is a highly versatile microorganism with capacity to metabolize a wide range of carbon and nitrogen sources and with possession of four distinct terminal oxidases. The genome contains a multitude of protein secretion systems, including type I, type II, type III, type V, and type VI secretion systems, and type IV pili, suggesting a high potential to interact with host plants. H. seropedicae is able to synthesize indole acetic acid as reflected by the four IAA biosynthetic pathways present. A gene coding for ACC deaminase, which may be involved in modulating the associated plant ethylene-signaling pathway, is also present. Genes for hemagglutinins/hemolysins/adhesins were found and may play a role in plant cell surface adhesion. These features may endow H. seropedicae with the ability to establish an endophytic life-style in a large number of plant species.
Mapa metalogenético de América del Sur 1: 5.000.000: Memoria explicativa
Milka K. de Brodtkorb,Norma E. Pezzutti
Revista de la Asociación Geológica Argentina , 2006,
Abstract:
The Relationship between the Leadership Styles of Lebanese Public School Principals and Their Attitudes towards ICT versus the Level of ICT Use by Their Teachers  [PDF]
Norma Ghamrawi
Open Journal of Leadership (OJL) , 2013, DOI: 10.4236/ojl.2013.21002
Abstract: This study investigates the relationship between the leadership styles exhibited by almost 50% of the total population of public school principals (N= 651) in Lebanonand their attitudes and the level of use of technology for educational purposes in their schools. Datawerecollected by surveying school principals via two questionnaires. Moreover, one teacher from each participant public school (N=651) completed a questionnaire pertaining to the level of use of technology in the school. Findings suggest the existence of positive correlation between the autocratic leadership styles of school principals and their negative attitudes towards the use of ICT for educational purposes. In addition, the results of the study accentuate another positive correlation existing between principals’ attitudes towards the use of ICT for educational purposes and the level of its use by their teachers in schools. Recommendations for further research and implications for school leadership and training programs are provided.
Diversidad fúngica en el filoplano de Osmorhiza spp. relacionado con el sistema de regeneración empleado en bosques de Nothofagus pumilio en Tierra del Fuego, Argentina
DUCID,MARIA GABRIELA; MURACE,MONICA ADRIANA; CELLINI,JUAN MANUEL;
Bosque (Valdivia) , 2005, DOI: 10.4067/S0717-92002005000100004
Abstract: the aim of this work was to determine the diversity of the osmorhiza chilensis phylloplane fungus in two regeneration systems to establish which of has the least impact on the diversity in a nothofagus pumilio virgin forest in tierra del fuego. forest management affects the biodiversity and equilibrium of the original system, altering different communities as, for instance, the one constituted by the phylloplane microflora. these changes were studied in two regeneration systems, shelterwood cut (cp) and clear cut (tr), against virgin forest (bv) as a standard. leaves of o. chilensis were processed in a laboratory to isolate and identify fungi species. the parameters evaluated were the abundance, richness, and diversity indices. the beta diversity indices showed that the communities that differed most were bv and tr and the most similar were bv and cp, which demonstrates that cp has the least impact on diversity. tr proved to be the most aggressive treatment, as it produced the maximum variation in relation to the type and number of species, which might be related to the loss of the entire protective cover.
Diversidad fúngica en el filoplano de Osmorhiza spp. relacionado con el sistema de regeneración empleado en bosques de Nothofagus pumilio en Tierra del Fuego, Argentina Fungi diversity in Osmorhiza spp. phylloplane related to the regeneration system applied in Nothofagus pumilio forests in Tierra del Fuego, Argentina
MARIA GABRIELA DUCID,MONICA ADRIANA MURACE,JUAN MANUEL CELLINI
Bosque (Valdivia) , 2005,
Abstract: El objetivo del trabajo fue determinar la diversidad fúngica del filoplano de Osmorhiza chilensis en dos sistemas de regeneración, para establecer cuál de ellos provoca el menor impacto sobre la diversidad del Bosque Virgen (BV) de Nothofagus pumilio en Tierra del Fuego. El aprovechamiento forestal de estos bosques afecta la biodiversidad y el equilibrio del sistema original, alterando las distintas comunidades, como la constituida por la micoflora del filoplano. Estos cambios se estudiaron en dos sistemas de regeneración: Corta de Protección (CP) y Tala Rasa (TR), con BV como testigo. Se trabajó con hojas de O. chilensis procesadas en laboratorio para aislar e identificar las especies fúngicas. Los parámetros evaluados fueron: abundancia, riqueza específica e índices de diversidad. TR presentó el menor valor de abundancia, la mayor riqueza y diversidad. Los índices de diversidad beta mostraron que las comunidades más diferentes fueron BV y TR y las más semejantes BV y CP, lo cual demuestra que CP causa el menor impacto en la diversidad. TR resultó ser el más agresivo por provocar el mayor cambio en cuanto al tipo y número de especies, lo que estaría relacionado con la pérdida total de la cubierta protectora. The aim of this work was to determine the diversity of the Osmorhiza chilensis phylloplane fungus in two regeneration systems to establish which of has the least impact on the diversity in a Nothofagus pumilio virgin forest in Tierra del Fuego. Forest management affects the biodiversity and equilibrium of the original system, altering different communities as, for instance, the one constituted by the phylloplane microflora. These changes were studied in two regeneration systems, shelterwood cut (CP) and clear cut (TR), against virgin forest (BV) as a standard. Leaves of O. chilensis were processed in a laboratory to isolate and identify fungi species. The parameters evaluated were the abundance, richness, and diversity indices. The Beta diversity indices showed that the communities that differed most were BV and TR and the most similar were BV and CP, which demonstrates that CP has the least impact on diversity. TR proved to be the most aggressive treatment, as it produced the maximum variation in relation to the type and number of species, which might be related to the loss of the entire protective cover.
A new species of Zamischus (Hymenoptera, Cynipoidea, Figitidae) from Brazil
Díaz, Norma;Gallardo, Fabiana;Dorfey, Cecilia;K?hler, Andreas;
Revista Brasileira de Entomologia , 2011, DOI: 10.1590/S0085-56262011000400007
Abstract: a new species of zamischus (hymenoptera, cynipoidea, figitidae) from brazil. a new species of zamischus from brazil is described and diagnosed. the species is closely related to z. brasiliensis but differs in the morphology of antennae and scutellum. z. aquilesi sp. nov. was collected via malaise trapping in a tobacco field in santa cruz do sul, rio grande do sul.
The Spin-Charge-Family Theory Is Explaining the Origin of Families, of the Higgs and the Yukawa Couplings  [PDF]
Norma Susana Manko? Bor?tnik
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.46113
Abstract:

The (extremely efficient) standard model of the elementary particles and fields makes several assumptions, which call for explanations. Any theory offering next step beyond the standard model must explain at least the existence and properties of families and their members and correspondingly the existence of the scalar Higgs and the Yukawa couplings, which in this model take care of masses of fermions and weak bosons and influence the decaying properties of families. The spin-charge-family theory [1-11] is offering a possible explanation for the assumptions of the standard model—for the appearance of families and their members (for the charges of a family members), for the gauge fields, for the scalar fields—interpreting the standard model as its low energy effective manifestation. The spin-charge-family theory predicts at the low energy regime two decoupled groups of four families of quarks and leptons. The predicted fourth family waits to be observed, while the stable fifth family is the candidate to form the dark matter. In this paper properties of families are analysed. The appearance of several scalar fields, all in the bosonic (adjoint) representations with respect to the family groups, while they are doublets with respect to the weak charge, is presented, their properties discussed, it is explained how these scalar fields can effectively be interpreted as the standard model Higgs and the Yukawa couplings. The spin-charge-family

The Explanation for the Origin of the Higgs Scalar and for the Yukawa Couplings by the Spin-Charge-Family Theory  [PDF]
Norma Susana Manko? Bor?tnik
Journal of Modern Physics (JMP) , 2015, DOI: 10.4236/jmp.2015.615230
Abstract: The spin-charge-family theory is a kind of the Kaluza-Klein theories, but with two kinds of the spin connection fields, which are the gauge fields of the two kinds of spins. The SO(13,1) representation of one kind of spins manifests in d = (3 + 1) all the properties of family members as assumed by the standard model; the second kind of spins explains the appearance of families. The gauge fields of the first kind, carrying the space index m = (0,...,3), manifest in d = (3 + 1) all the vector gauge fields assumed by the standard model. The gauge fields of both kinds of spins, which carry the space index (7, 8) gaining at the electroweak break nonzero vacuum expectation values, manifest in d = (3 + 1) as scalar fields with the properties of the Higgs scalar of the standard model with respect to the weak and the hyper charge (\"\" and \"\", respectively), while they carry additional quantum numbers in adjoint representations, offering correspondingly the explanation for the scalar Higgs and the Yukawa couplings, predicting the fourth family and the existence of several scalar fields. The paper 1) explains why in this theory the gauge fields are with the scalar index s = (5,6,7,8) doublets with respect to the weak and the hyper charge, while they are with respect to all the other charges in the adjoint representations; 2) demonstrates that the spin connection fields manifest as the Kaluza-Klein vector gauge fields, which arise from the vielbeins; and 3) explains the role of the vielbeins and of both kinds of the spin connection fields.
Automated Dermoscopy Image Analysis of Pigmented Skin Lesions
Alfonso Baldi,Marco Quartulli,Raffaele Murace,Emanuele Dragonetti,Mario Manganaro,Oscar Guerra,Stefano Bizzi
Cancers , 2010, DOI: 10.3390/cancers2020262
Abstract: Dermoscopy (dermatoscopy, epiluminescence microscopy) is a non-invasive diagnostic technique for the in vivo observation of pigmented skin lesions (PSLs), allowing a better visualization of surface and subsurface structures (from the epidermis to the papillary dermis). This diagnostic tool permits the recognition of morphologic structures not visible by the naked eye, thus opening a new dimension in the analysis of the clinical morphologic features of PSLs. In order to reduce the learning-curve of non-expert clinicians and to mitigate problems inherent in the reliability and reproducibility of the diagnostic criteria used in pattern analysis, several indicative methods based on diagnostic algorithms have been introduced in the last few years. Recently, numerous systems designed to provide computer-aided analysis of digital images obtained by dermoscopy have been reported in the literature. The goal of this article is to review these systems, focusing on the most recent approaches based on content-based image retrieval systems (CBIR).
Definition of an automated Content-Based Image Retrieval (CBIR) system for the comparison of dermoscopic images of pigmented skin lesions
Alfonso Baldi, Raffaele Murace, Emanuele Dragonetti, Mario Manganaro, Oscar Guerra, Stefano Bizzi, Luca Galli
BioMedical Engineering OnLine , 2009, DOI: 10.1186/1475-925x-8-18
Abstract: To this end, we have enrolled, from 2004 to 2008, 3415 caucasian patients and collected 24804 dermoscopic images corresponding to 20491 pigmented lesions with known pathology. The images were acquired with a well defined dermoscopy system and stored to disk in 24-bit per pixel TIFF format using interactive software developed in C++, in order to create a digital archive.The analysis system of the images consists in the extraction of the low-level representative features which permits the retrieval of similar images in terms of colour and texture from the archive, by using a hierarchical multi-scale computation of the Bhattacharyya distance of all the database images representation with respect to the representation of user submitted (query).The system is able to locate, retrieve and display dermoscopic images similar in appearance to one that is given as a query, using a set of primitive features not related to any specific diagnostic method able to visually characterize the image. Similar search engine could find possible usage in all sectors of diagnostic imaging, or digital signals, which could be supported by the information available in medical archives.Melanoma and non-melanoma skin cancers currently constitute one of the most common malignancies in the caucasian population, and the worldwide incidence and mortality rates are continuously increasing [1]. In particular melanoma incidence has increased more than any other cancer, reaching currently 18 new cases per 100.000 population per year in the United States [2]. Because advanced skin cancers remain incurable, early detection and surgical excision currently is the only approach to reduce mortality.The traditional screening tests require a skin naked-eye examination by an experienced clinician. One of the most widely used method for evaluating with naked-eye pigmented skin lesions (PSLs) is the ABCD rule [3]. However, this system may fail to detect many difficult or borderline PSLs which are small or/and regu
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