Dinâmica sucessional da vegetação de manguezal no nordeste paraense.

bitstream/item/60317/1/CPATU-PA183.pd

Análise florística e finalidade de espécies cultivadas em sistemas agroflorestais no município de Cametá, Pará, Amazônia Oriental.

Apresenta os resultados de Sistemas Agroflorestais (SAF) cultivados em Cametá, Estado do Pará, classificados como tradicionais. Utilizou-se quatro parcelas amostrais de 50 m x 50 m (0,25 ha), divididas em dez subparcelas de 10 m x 25 m, cada, onde foi medido o diâmetro à altura do peito (DAP) e aferida à altura total (H) de todos os indivíduos com DAP ≥ 5 cm. Foram inventariados em média 2.458 indivíduos/ha, pertencentes a 10 famílias, 13 gêneros e 13 espécies. O uso como lenha e carvão (energia) foi mais frequente (73,7%). Euterpe oleracea e Theobroma cacao, espécies comumente encontradas nas várzeas amazônicas como as mais importantes. O maior percentual de espécies para consumo doméstico em relação às espécies comerciais, revela o contraste entre os SAF tradicional e comercial, mostrando que os usos estão relacionados mais com a segurança alimentar do que com a demanda de mercado local e/ou circunvizinho. Outrossim, o alto percentual de espécies comerciais (53%), indica a capacidade de gerar produtos de consumo e renda, aptidão socioeconômica e ecológica e sustentabilidade desse importante agroecossistema na Amazônia Oriental, dentro de suas particularidades

Is the Toxicity of Salvage Prostatectomy Related to the Primary Prostate Cancer Therapy Received?

PURPOSE: To compare the toxicity profile and oncological outcome of salvage radical prostatectomy (SRP) following focal therapy (FT) versus SRP after radiation therapies (RT) - external beam radiation therapy (EBRT) or brachytherapy (BT). MATERIALS AND METHODS: Data concerning all men undergoing SRP for recurrent prostate cancer after either FT, EBRT or BT were retrospectively collected from 4 high volume surgical centres. The primary outcome measure of the study was toxicity of SRP characterized by any 30-day post-operative Clavien-Dindo complication rate, 12-month continence rate and 12-month potency rate. The secondary outcome was oncological outcome after SRP including positive margin rate and 12-month biochemical recurrence (BCR) rate. BCR was estimated using Kaplan-Meier methods and significant differences were calculated using a log rank test. Median follow-up time was 29.5 months. RESULTS: Between April 2007 and September 2018, 185 patients underwent SRP of which 95 had SRP after FT and 90 had SRP after RT, either EBRT or BT. SRP after RT was associated with a significantly higher 30-day Clavien-Dindo I-IV complication rate (34% vs 5%, p<0.001). At 12 months following surgery, patients undergoing SRP after FT had significantly better continence (SRP after FT:83% pad-free vs RT:49%) while potency outcomes were similar (FT:14% vs RT:11%). Men undergoing SRP after RT had a significantly higher stage and grade of disease together with a higher positive surgical margin rate (37% vs 13%, p=0.001). 3-year BCR after FT was 35% compared to 32% after RT, p=0.76. In multivariable analysis, men undergoing SRP after FT experienced a higher risk of BCR (HR 0.36 [0.18-0.82], p<0.005). CONCLUSIONS: This multicentre study demonstrates the toxicity of SRP in terms of perioperative complications and long-term urinary continence recovery is dependent on initial primary prostate cancer therapy received with men undergoing SRP after FT experiencing lower postoperative complication rates and better urinary continence outcomes

Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at √s=7 TeV

Bose-Einstein correlations of same-sign charged pions, produced in protonproton collisions at a 7 TeV centre-of-mass energy, are studied using a data sample collected by the LHCb experiment. The signature for Bose-Einstein correlations is observed in the form of an enhancement of pairs of like-sign charged pions with small four-momentum difference squared. The charged-particle multiplicity dependence of the Bose-Einstein correlation parameters describing the correlation strength and the size of the emitting source is investigated, determining both the correlation radius and the chaoticity parameter. The measured correlation radius is found to increase as a function of increasing charged-particle multiplicity, while the chaoticity parameter is seen to decreas

Study of charmonium production in b -hadron decays and first evidence for the decay Bs0

Using decays to φ-meson pairs, the inclusive production of charmonium states in b-hadron decays is studied with pp collision data corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. Denoting byBC ≡ B(b → C X) × B(C → φφ) the inclusive branching fraction of a b hadron to a charmonium state C that decays into a pair of φ mesons, ratios RC1C2 ≡ BC1 /BC2 are determined as Rχc0ηc(1S) = 0.147 ± 0.023 ± 0.011, Rχc1ηc(1S) =0.073 ± 0.016 ± 0.006, Rχc2ηc(1S) = 0.081 ± 0.013 ± 0.005,Rχc1 χc0 = 0.50 ± 0.11 ± 0.01, Rχc2 χc0 = 0.56 ± 0.10 ± 0.01and Rηc(2S)ηc(1S) = 0.040 ± 0.011 ± 0.004. Here and below the first uncertainties are statistical and the second systematic.Upper limits at 90% confidence level for the inclusive production of X(3872), X(3915) and χc2(2P) states are obtained as RX(3872)χc1 < 0.34, RX(3915)χc0 < 0.12 andRχc2(2P)χc2 < 0.16. Differential cross-sections as a function of transverse momentum are measured for the ηc(1S) andχc states. The branching fraction of the decay B0s → φφφ is measured for the first time, B(B0s → φφφ) = (2.15±0.54±0.28±0.21B)×10−6. Here the third uncertainty is due to the branching fraction of the decay B0s → φφ, which is used for normalization. No evidence for intermediate resonances is seen. A preferentially transverse φ polarization is observed.The measurements allow the determination of the ratio of the branching fractions for the ηc(1S) decays to φφ and p p asB(ηc(1S)→ φφ)/B(ηc(1S)→ p p) = 1.79 ± 0.14 ± 0.32

Observation of an Excited Bc+ State

Using pp collision data corresponding to an integrated luminosity of 8.5 fb-1 recorded by the LHCb experiment at center-of-mass energies of s=7, 8, and 13 TeV, the observation of an excited Bc+ state in the Bc+π+π- invariant-mass spectrum is reported. The observed peak has a mass of 6841.2±0.6(stat)±0.1(syst)±0.8(Bc+) MeV/c2, where the last uncertainty is due to the limited knowledge of the Bc+ mass. It is consistent with expectations of the Bc∗(2S31)+ state reconstructed without the low-energy photon from the Bc∗(1S31)+→Bc+γ decay following Bc∗(2S31)+→Bc∗(1S31)+π+π-. A second state is seen with a global (local) statistical significance of 2.2σ (3.2σ) and a mass of 6872.1±1.3(stat)±0.1(syst)±0.8(Bc+) MeV/c2, and is consistent with the Bc(2S10)+ state. These mass measurements are the most precise to date

Measurement of the inelastic pp cross-section at a centre-of-mass energy of 13TeV

The cross-section for inelastic proton-proton collisions at a centre-of-mass energy of 13TeV is measured with the LHCb detector. The fiducial cross-section for inelastic interactions producing at least one prompt long-lived charged particle with momentum p &gt; 2 GeV/c in the pseudorapidity range 2 &lt; η &lt; 5 is determined to be ϭ acc = 62:2 ± 0:2 ± 2:5mb. The first uncertainty is the intrinsic systematic uncertainty of the measurement, the second is due to the uncertainty on the integrated luminosity. The statistical uncertainty is negligible. Extrapolation to full phase space yields the total inelastic proton-proton cross-section ϭ inel = 75:4 ± 3:0 ± 4:5mb, where the first uncertainty is experimental and the second due to the extrapolation. An updated value of the inelastic cross-section at a centre-of-mass energy of 7TeV is also reported