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Natural Regeneration in Tropical Secondary Forest in Southern Amazonia, Brazil

Open Journal of Forestry 2014年第2期4卷 151-160页

作者： Alexandre Ebert Leandro Ribeiro Teixeira adriana zanirato contini da silva Reginaldo Brito da Costa Faculty of Forestry Engineering Federal University of Mato Grosso Cuiabá Brazil

The study aimed to establish floral composition, diversity levels, category size, phytosociological structure, commercial use and ecological group of species present in the regeneration of open ombrophile forest in southern Amazon, Brazil. data were collected at S?o Nicolau farm, in the municipality of Cotrigua?u, northwest of Mato Grosso state, coordinates 51°9'19.5"S and 58°14'53"W. One hundred plots of 10 × 10 m were allocated. All individuals between 29.9 and 59.9 cm had circumference at breast height (CAP) measure, with sub-plots of 5 × 5 m which were measured in all subjects between 1:50 m in height 29.9 cm CAP and sub-plots of 2 × 2 m for individuals between 0.30 to 1.5 m tall. The information obtained in the field were processed in excel spreadsheet. The results showed the occurrence of 610 individuals belonging to 82 species, 34 plant families, with a diversity index of Shannon & Weaver’s 2.77. The index of value of importance showed species Protium robustum, Maquira calophilla and Inga fagifolium with greater ecological importance in fitocenose. The higher values for Natural Regeneration were the species Protium robustum, Maquira calophilla and Inga fagifolium with 16.42, 8.03 and 7.76 respectively.

关键词： Vertical Structure Ecological Analysis Forest Management

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Role of Chlamydia in the Development of Ocular Adnexal Lymphoma

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Journal of Cancer Therapy 2013年第2期4卷 662-677页

作者： Carlo contini silva Seraceni Martina Maritati Francesco Cavazzini Paolo Perri Department of Bio- medical Sciences Section of Hematology University S. Anna Hospital Ferrara Italy Department of Biomedical Sciences and Specialistic Surgery Section of Ophthalmology University of Ferrara Ferrara Italy Department of Medical Sciences Section of Infectious Diseases University S. Anna Hospital Ferrara Italy

The aetiology of OAL is undefined, although much attention has been recently focused on determining whether OAL is caused by an autoimmune disorder, chronic antigenic stimulation or both. It is becoming evident that infectious agents underlying chronic eye infection, as Chlamydia, may play a role in ocular lymphomagenesis. The high prevalence of Chlamydophila psittaci in patients with OAL has suggested a potential oncogenic role for its tendency to cause chronic and persistent infections, although it has been documented an evident geographical variability and response to antibiotic treatment. For C. pneumoniae, the findings so far obtained are very limited not only for identification in OAL but also for the specific treatment with antibiotics. The recent molecular and cultural evidence of C. trachomatis in patients with OAL, seems to suggest that also this pathogen may contribute to pathogenesis of such lymphoma. The potential application of bacteria-eradicating therapy at local and systemic level may ultimately result in safer and more efficient therapeutic option for patients affected by these malignancies. Moreover, a close collaboration between experts in ophthalmology, infectious diseases and hematology will help, in the future, to effectively manage this disease. This review attempts to weigh the currently available evidence regarding the role that Chlamydia play in development of OAL and focuses on patients with OAL observed at our Institution.

关键词： Ocular Adnexa Lymphoma Chlamydia PCR Antibiotic Doxycycline

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