6,406 research outputs found
Efeitos de micronutrientes em capim colonião (Panicum maximum, Jacq.) cultivado num solo de campo cerrado.
Utilizando-se de um solo de campo cerrado (Latosol Vermelho Amarelo - fase arenosa), que nunca recebeu qualquer adubação, instalou-se este experimento em vasos, em casa de vegetação, com a finalidade de se verificar a influencia dos micronutrientes: Manganês, molibdenio, cobre, zinco e boro, sobre o desenvolvimento do capim colonia
On the resonance eigenstates of an open quantum baker map
We study the resonance eigenstates of a particular quantization of the open
baker map. For any admissible value of Planck's constant, the corresponding
quantum map is a subunitary matrix, and the nonzero component of its spectrum
is contained inside an annulus in the complex plane, . We consider semiclassical sequences of eigenstates, such that the
moduli of their eigenvalues converge to a fixed radius . We prove that, if
the moduli converge to , then the sequence of eigenstates
converges to a fixed phase space measure . The same holds for
sequences with eigenvalue moduli converging to , with a different
limit measure . Both these limiting measures are supported on
fractal sets, which are trapped sets of the classical dynamics. For a general
radius , we identify families of eigenstates with
precise self-similar properties.Comment: 32 pages, 2 figure
Relação de Meloidogyne arenaria com o desenvolvimento radicular do porta-enxerto SO4. de videira
O objetivo deste trabalho foi avaliar a relação entre a presença de Meloidogyne arenaria no solo e o desenvolvimento radicular do porta-enxerto SO4 de videira. Foram avaliados, além deste porta-enxerto, o ?Harmony? e o ?IAC 766? por serem amplamente utilizados na vitivinicultura do Submédio do Vale do São Francisco. O enraizamento foi feito em solo autoclavado contido em sacos para formação de mudas. Após 40 dias, as mudas foram transplantadas para vasos com capacidade de 20 L, conforme os seguintes tratamentos: 1) solo natural -- infestado com M. arenaria -- 2) solo autoclavado e com inoculação das mudas e 3) solo autoclavado e sem inoculação das mudas com M. arenaria. Após 6 meses, nenhuma anormalidade foi observada, visualmente, no sistema radicular dos porta-enxertos avaliados. Observou-se que o nematoide não se multiplicou de forma diferenciada nos três porta-enxertos, mas que o porta-enxerto ?Harmony? pode vir a se tornar uma opção de substituição do ?SO4? por se apresentar com tendências a maior vigor do sistema radicular, visto não ter ocorrido diferença significativa no número de ovos quantificados nos três porta-enxertos
High-risk surgical stage 1 endometrial cancer: analysis of treatment outcome
PURPOSE: To report the relapse and survival rates associated to treatment for patients with stage IC, grade 2 or grade 3 and IB grade 3 diseases considered high risk patients group for relapse. MATERIALS AND METHODS: From January 1993 to December 2003, 106 patients with endometrial cancer stage I were managed surgically in our institution. Based on data from the medical records, 106 patients with epithelial endometrial cancer met the following inclusion criteria: stage IC grade 2 or 3 and IB grade 3 with or without lymphovascular invasion. Staging was defined according to the FIGO surgical staging system. Postoperative adjuvant radiotherapy consisted of external beam pelvic radiation, vaginal brachytherapy alone or both. The median age was 65 years (range, 32–83 years), lymph node dissection was performed in 45 patients (42.5%) and 14 patients (13.2%) received vaginal brachytherapy only, and 92 (86.8%) received combined vaginal brachytherapy and external beam radiotherapy. The median dose of external beam radiotherapy administered to the pelvis was 4500 cGy (range 4000 – 5040). The median dose to vaginal surface was 2400 cGy (range 2000 – 3000). Predominant pathological stage and histological grade were IC (73.6%) and grade 3 (51.9%). The lymphovascular invasion was present in 33 patients (31.1%) and pathological stage IC grade 2 was most common (48. 1%) combination of risk factors in this group. RESULTS: With a follow up median of 58.3 months (range 12.8 – 154), five year overall survival and event free survival were 78.5% and 72.4%, respectively. Locoregional control in five year was 92.4%. Prognostic factors related with survival in univariate analyses were: lymphadenectomy (p = 0.045), lymphovascular invasion (p = 0.047) and initial failure site (p < 0.0001). In multivariate analyses the initial failure in distant sites (p < 0.0001) was the only factor associated with poor survival. Acute and chronic gastrointestinal and genitourinary toxicity grades 3 were not observed. CONCLUSION: In conclusion, our results showed that the stage IC, grade 2, 3 and IB grade 3 endometrial cancer was associated with significantly increased risk of distant relapse and endometrial carcinoma-related death independently of salvage treatment modality
Método de extração de DNA de folhas de soja adaptado para larga escala.
O presente trabalho tem por objetivo desenvolver um protocolo de extração de DNA de soja de qualidade e quantidade suficientes, baixo custo e adaptado para larga escala
Otimização de um método de extração de DNA eficiente, rápido e de baixo custo de sementes de soja para fins de seleção assistida por marcadores moleculares.
O presente trabalho teve como objetivo otimizar o protocolo de extração de DNA ‘SAM’ para extração de DNA em larga escala e a um baixo custo, em sementes de soja inteiras e moídas em diversas quantidades para atender fins de seleção assistida e às demandas do programa de melhoramento de soja e do Laboratório de Genética Molecular e Seleção Assistida da EMBRAPA-SOJA
Identifying the Higgs Boson in Electron--Photon Collisions
We analyze the production and detection of the Higgs boson in the next
generation of linear colliders operating in the mode. In
particular, we study the production mechanism , where one photon is generated via the laser
backscattering mechanism, while the other is radiated via the usual
bremsstrahlung process. We show that this is the most important mechanism for
Higgs boson production in a GeV collider for
M_H\raisebox{-.4ex}{\rlap{\sim}} \raisebox{.4ex}{>}140 GeV. We also study
the signals and backgrounds for detection of the Higgs in the different decay
channels, , , and , and suggest kinematical cuts to
improve the signature of an intermediate mass Higgs boson.Comment: (REVTEX 2.0, 12 pages and 9 figures available upon request, Preprint
MAD/PH/753
Intensity Modulated Radiotherapy (IMRT) in the postoperative treatment of an adenocarcinoma of the endometrium complicated by a pelvic kidney
BACKGROUND: Pelvic Radiotherapy (RT) as a postoperative treatment for endometrial cancer improves local regional control. Brachytherapy also improves vaginal control. Both treatments imply significant side effects that a fine RT technique can help avoiding. Intensity Modulated RT (IMRT) enables the treatment of the target volume while protecting normal tissue. It therefore reduces the incidence and severity of side effects. CASE: We report on a 50 year-old patient with a serous-papiliferous adenocarcinoma of the uterus who was submitted to surgical treatment without lymph node sampling followed by Brachytherapy, and Chemotherapy. The patient had a pelvic kidney, and was therefore treated with IMRT. So far, the patient has been free from relapse and with normal kidney function. CONCLUSION: IMRT is a valid technique to prevent the kidney from radiation damage
Projeto Balde Cheio: Transferência de tecnologia na produção leiteira - Estudo de caso da chacára São Francisco, de Flórida Paulista, SP.
bitstream/CPPSE/16836/1/comutecnico72.pdfISSN 1981-206
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