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Rese a de "Attraversando lo stagno: Storie della migrazione ecuadoriana in Europa tra continuità e cambiamento (1997-2007)", de Chiara Pagnotta
Migraciones internacionales , 2012,
On Semi-isogenous mixed surfaces
Nicola Cancian,Davide Frapporti
Mathematics , 2015,
Abstract: Let $C$ be a smooth projective curve and $G$ a finite subgroup of $\mathrm{Aut}(C)^2\rtimes \mathbb Z_2$ whose action is $\textit{mixed}$, i.e. there are elements in $G$ exchanging the two isotrivial fibrations of $C\times C$. Let $G^0\triangleleft G$ be the index two subgroup $G\cap\mathrm{Aut}(C)^2$. If $G^0$ acts freely, then $X:=(C\times C)/G$ is smooth and we call it $\textit{semi-isogenous mixed surface}$. In this paper we give an algorithm to determine all semi-isogenous mixed surfaces with given geometric genus, irregularity and self-intersection of the canonical class. As an application we classify all semi-isogenous mixed surfaces with $K^2>0$ and geometric genus equal to the irregularity. In this way we construct new examples of surfaces of general type with $\chi=1$. We provide an example of a minimal surfaces of general type with $K^2=7$ and $p_g=q=2$.
Efeito do sombreamento no crescimento inicial de Lonchocarpus muehlbergianus Hassl
Cancian, Maria A. Eva;Cordeiro, Lázara;
Acta Botanica Brasilica , 1998, DOI: 10.1590/S0102-33061998000400005
Abstract: this experiment was carried out under greenhouse conditions to verifiy the influence of shading on the growth of lonchocarpus muehlbergianus plants. the following shading levels were used: 40% and 60% obtained using black plastic screening, and 0% under full light. the following results were obtained: the plants cultivated in 60% shading were higher and present larger leaf areas, wider collar and main root diameters, besides larger aerial and dry root weight were obtained in plants cultivated in 0% and 40% shading.
Espécies de Chalcididae (Hymenoptera, Insecta) do Estado do Espírito Santo, Brasil
Tavares, Marcelo Teixeira;Araujo, Bruno Cancian de;
Biota Neotropica , 2007, DOI: 10.1590/S1676-06032007000200024
Abstract: a checklist of chalcididae (hymenoptera, insecta) species is presented for the state of espírito santo, brazil. specimens were collected in 22 localities and belong to 37 species and 11 genera. only two species and five genera have been previously recorded for the state. seven species and one genus are recorded for the first time for brazil and two species are new records for the neotropical region. the geographic distribution of these species is discussed.
C-Terminal Region of EBNA-2 Determines the Superior Transforming Ability of Type 1 Epstein-Barr Virus by Enhanced Gene Regulation of LMP-1 and CXCR7
Laila Cancian,Rachel Bosshard,Walter Lucchesi,Claudio Elgueta Karstegl,Paul J. Farrell
PLOS Pathogens , 2011, DOI: 10.1371/journal.ppat.1002164
Abstract: Type 1 Epstein-Barr virus (EBV) strains immortalize B lymphocytes in vitro much more efficiently than type 2 EBV, a difference previously mapped to the EBNA-2 locus. Here we demonstrate that the greater transforming activity of type 1 EBV correlates with a stronger and more rapid induction of the viral oncogene LMP-1 and the cell gene CXCR7 (which are both required for proliferation of EBV-LCLs) during infection of primary B cells with recombinant viruses. Surprisingly, although the major sequence differences between type 1 and type 2 EBNA-2 lie in N-terminal parts of the protein, the superior ability of type 1 EBNA-2 to induce proliferation of EBV-infected lymphoblasts is mostly determined by the C-terminus of EBNA-2. Substitution of the C-terminus of type 1 EBNA-2 into the type 2 protein is sufficient to confer a type 1 growth phenotype and type 1 expression levels of LMP-1 and CXCR7 in an EREB2.5 cell growth assay. Within this region, the RG, CR7 and TAD domains are the minimum type 1 sequences required. Sequencing the C-terminus of EBNA-2 from additional EBV isolates showed high sequence identity within type 1 isolates or within type 2 isolates, indicating that the functional differences mapped are typical of EBV type sequences. The results indicate that the C-terminus of EBNA-2 accounts for the greater ability of type 1 EBV to promote B cell proliferation, through mechanisms that include higher induction of genes (LMP-1 and CXCR7) required for proliferation and survival of EBV-LCLs.
Crescimento de Pistia stratiotes em diferentes condi??es de temperatura e fotoperíodo
Cancian, Leonardo Farage;Camargo, Antonio Fernando Monteiro;Silva, Gustavo Henrique Gonzaga;
Acta Botanica Brasilica , 2009, DOI: 10.1590/S0102-33062009000200027
Abstract: temperature and photoperiod are abiotic variables that directly influence aquatic macrophyte production. they also determine the geographic distribution of the species and affect community structure. the aim of this study was to evaluate the growth of pistia stratiotes in different temperature and photoperiod regimes. p. stratiotes plants were conditioned in growth chambers with controlled temperature and photoperiod. six treatments were used: 1 (15 oc/8 h photoperiod); 2 (15 oc/12 h); 3 (25 oc/8 h); 4 (25 oc/12 h); 5 (30 oc/8 h) and 6 (30 oc/12 h). the highest biomass gain occurred with treatment number 4 which showed significant differences (p<0.05) compared to treatments number 1, 5 and 6. in treatments 1, 5 and 6 the final biomass was lower than the initial biomass of p. stratiotes. the greatest biomass reduction occurred in treatment number 6 which was significantly lower than in treatments 2, 3 and 4. the highest sprout production was observed in treatments at 25 oc, while in treatments at 15 oc and 30 oc sprouting was greatly reduced. we conclude that temperature and photoperiod influence p. stratiotes growth and higher growth rates occurred at 25 oc and 12-hour photoperiod.
Gradenigo's syndrome as a first manifestation of rhabdomyosarcoma
Schiavetto, Renata Rennó,Haber, Daniel Martiniano,Cancian, Lauana Renata,Maniglia, Claudia Pereira
International Archives of Otorhinolaryngology , 2009,
Abstract: Introduction: Rhabdomyosarcoma is a malignant neoplasm with origin from voluntary muscles and causes approximately 50% of all tumors of soft part in children. The embryonal subtype is the most common in the head and neck region, its location in the middle ears and mastoid is uncommon and of the worst prognosis due to the high incidence of intracranial extension. the signs and symptoms depend on the location of the tumor. Objective: The objective of this case report was to carry out a brief review on the Rhabdomyosarcoma and Gradenigo's Syndrome association and clarify the importance of the differential diagnosis in this kind of pathology. Case Report: In this work we report the case of a five-year-old boy with diagnosis of temporal bone Rhabdomyosarcoma that presented with a case of Gradenigo's Syndrome (abducens paralysis, otorrhea/otalgia, retroorbitary pain) and facial nerve paralysis.
Cervical necrotizing fasciitis in infant: case report
Schiavetto, Renata Rennó,Cancian, Lauana R. L.,Haber, Daniel Martiniano,Maniglia, Mauricio Pereira
International Archives of Otorhinolaryngology , 2008,
Abstract: Introduction: Necrotizing fasciitis is a bacterial infection characterized by extensive necrosis of tissues, and may include skin and muscles. It's more frequent in adults than in children and generally involves the trunk and extremities. Head and neck area is less commonly affected. The most frequently isolated pathogens are the Streptococcus pyogenes (group A) and Staphylococcus aureus. The anatomopathological exam is the best diagnostic method, which early identifies the disease. The clinical support, surgical debridement, and the intravenous antibiotic therapy, are fundamental for the treatment. Objective: To report a case of an infant who suffered from Cervical Necrotizing Fasciitis. Case Report: Infant, male sex, white, 2 months old, previously healthy, with Necrotizing Fasciitis involving the frontal and right lateral cervical regions. After adequate treatment the patient obtained excellent recovery without presenting important aesthetic or functional alterations. Conclusion: The Cervical Necrotizing Fasciitis is uncommon in children. The early surgical debridement is necessary to control the infection, even if it may result in great and deep injuries. The wide spectrum antibiotic therapy and hemodynamic support are also basic for the therapeutic success.
Fasceíte necrotizante cervical em lactente: relato de caso
Schiavetto, Renata Rennó,Cancian, Lauana R. L.,Haber, Daniel Martiniano,Maniglia, Mauricio Pereira
Arquivos Internacionais de Otorrinolaringologia , 2008,
Abstract: Introdu o: A Fasceíte Necrotizante é uma infec o bacteriana caracterizada por extensa necrose dos tecidos, que pode envolver desde a pele até a musculatura. é mais prevalente na popula o adulta do que pediátrica e os principais locais de acometimento s o o tronco e extremidades, sendo a regi o da cabe a e pesco o menos comumente atingida. Os patógenos mais freqüentemente isolados s o Streptococcus pyogenes (grupo A) e Staphilococcus aureus. O exame anatomopatológico é o melhor método diagnóstico identificando precocemente a doen a. O suporte clínico, o debridamento cirúrgico, além de antibioticoterapia endovenosa s o fundamentais para o tratamento. Objetivo: Relatar o caso de um lactente que apresentou Fasceíte Necrotizante na regi o cervical. Relato do caso: Lactente, sexo masculino, branco, 2 meses de idade, previamente hígido, com quadro de Fasceíte Necrotizante em regi o cervical anterior e lateral direita. Com tratamento adequado o paciente obteve excelente recupera o sem apresentar importantes altera es estéticas ou funcionais. Conclus o: A Fasceíte Necrotizante cervicofacial é rara em crian as. O debridamento cirúrgico precoce é necessário para controlar a infec o mesmo que possa resultar em ferimentos grandes e profundos. A antibioticoterapia de amplo espectro e o suporte hemodinamico também s o fundamentais para o sucesso terapêutico.
Síndrome de gradenigo como primeira manifesta o de rabdomiossarcoma
Schiavetto, Renata Rennó,Haber, Daniel Martiniano,Cancian, Lauana Renata,Maniglia, Claudia Pereira
Arquivos Internacionais de Otorrinolaringologia , 2009,
Abstract: Introdu o: Rabdomiossarcoma é uma neoplasia maligna com origem em músculos estriados e é responsável por aproximadamente 50% de todos os tumores de partes moles em crian as. O subtipo embrionário é o mais comum na regi o da cabe a e pesco o, sua localiza o na orelha média e mastoide é rara e de pior prognóstico devido à alta incidência de extens o intracraniana.Os sinais e sintomas dependem da localiza o do tumor. Objetivo: O objetivo desse relato de caso foi realizar uma breve revis o sobre a associa o Rabdomiossarcoma e Síndrome de Gradenigo e elucidar a importancia do diagnóstico diferencial nesse tipo de patologia. Relato do Caso: Nesse trabalho é relatado o caso de um menino de cinco anos de idade com o diagnóstico de Rabdomiossarcoma de osso temporal que se apresentou com o quadro de Síndrome de Gradenigo (paralisia do abducente, otorreia/otalgia, dor retro-orbitária) e paralisia do nervo facial.
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