Nutrição mineral da macieira. III. crescimento e extração de nutrientes pelos frutos

In order to obtain informations concerning the dry matter production and extraction of nutrients by the fruits of the varieties 'Ohio Beauty' and 'Brasil', a trial was conducted on a Latossol Vermelho Escuro-Orto (USTOX) at Buri , State of São Paulo, Brazil. The fruits were collected from trees grafted on 'Doucin' being 1-2; 3-4; 4-5, and 6-7 years old. Chemical analysis were run on the fruits for: N, P, K, Ca, Mg, S, B, Cu, Fe, Mn, Zn, and Mo; as well for the dry mat ter production. The main conclusions are as follows: a) differences were observed on dry matter production of fruits by the two varieties at the different stages of growth; b) differences were observed on exportation of nutrients between the two varieties concerning the fruit growth period- the nutrient exportation by the fruits obeyed following order: K>;N>;P>;S>;Ca>;Mg>;Fe>;B >; Cu >; Mn >; Zn >; Mo.Em um ensaio com macieiras 'Ohio Beauty' e 'Brasil' com 1-2, 3-4, 4-5 e 6-7 anos enxertadas sobre macieira 'Doucin¹, estabalecidos no municfoio de Buri no Estado de São Paulo, assentado sobre Latossol Vermelho Escuro-orto, foram coletados frutos de cada idade, pesados após secagem a 80°C e analisados para N, P, K, Ca, Mg, S, B, Cu, Fe, Mn e Mo. Os autores concluíram: a) frutos da variedade 'Ohio Beauty' e 'Brasil" diferem nos acúmulos de matéria seca em diferentes estádios de desenvolvimento; b) as variedades diferem na extração de nutrientes pelos frutos; c) a extração de nutrientes pelos frutos obedecem a seguinte ordem: K>;N>;P>;S>; Ca >; Mg >; B >; Cu >; Mn >; Zn >; Mo

Nutrição mineral da macieira. V. concentração de nutrientes nos frutos durante o crescimento

On an apple grove situated at Buri, State of São Paulo, fruits were collected from trees 1-2; 3-4; 4-5, and 6 - 7 years old. The fruits were analysed for N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn. The authors concluded: a) the concentrations of the nutrients in the fruits differ according to the variety, age of the tree and age of the fruit; b) the concentrations of nutrients decrease with aging of the fruits; c) the concentrations of the macronutrients obey the following order: N>;K>;P>;Ca>;S>; Mg; d) for the micronutrients, the following order was ob -served: Fe >; B >; Mn >; Cu >; Zn.Em uma plantação de macieira (Pyrus malus L.), cultivares 'Ohio Beauty' e 'Brasil', localizada no município de Buri, SP, instalada sobre um Latossol Vermelho Escuro Orto, foram amostrados frutos em diferentes está dios de desenvolvimento de plantas com 1-2, 3-4, 4-5 e 6-7 anos de idade. O material coletado foi analisado para N, P, K, Ca, Mg, S, B, Cu, Fe, Mn e Zn. Os autores observaram que as concentrações de nutrientes nos frutos diferem conforme o cultivar, idade da planta e idade do fruto

Nutrição mineral da macieira IV. acúmulo de matéria seca e exportação de nutrientes pelas folhas e galhos podados

A trial was conducted on Latossol Vermelho Escuro Orto (Orthox) at Buri, State of São Paulo, Brazil. The material was collected from 'Ohio Beauty¹ and 'Brasil¹ apples trees grafted on 'Doucin'; the trees were 3-4, 4-5 and 6-7 years old. The authors concluded that at the dormant period differen ces were observed on the dry matter production as well on the nutrients exported by the leaves and branches of the two varieties. Branches exported higher amounts of P, Ca, B, Cu and Zn. Larger quantities of N, P and Mn were exported by the 1 eaves.Em uma plantação de macieiras situada em um Latossol Vermelho Orto, adequadamente conduzida, composta das variedades 'Ohio Beauty' e 'Brasil' com 2-3, 3_4, 4-5 e 6-7 anos de idade, enxertadas sobre macieira 'Doucin', situada no município de Buri, SP, foi coletado material de poda constituído por folha e galhos. Determinou-se o peso da matéria seca e as quantidades de N, P, K, Ca, Mg, S, B, Cu, Fe, Mn e Zn. Concluem os autores que a quantidade de matéria seca produzida difere entre os cultivares. Os cultivares exportam quantidades diferentes de nutrientes pelas folhas e pelos galhos. Um hectare contendo 606 plantas exporta através das folhas e galhos podados em média as seguintes quantidades de nutrientes aos 7 anos de idade: 2,01 kg de N; 0,15 kg de P; 1,35 kg de K; 1,41 kg de Ca; 0,36 kg de Mg; 0,64 kg de S; 4,7 g de B; 1,7 g de Cu; 14,6 g de Fe; 5,1 g de Mn; e 2,4 g de Zn

Nutrição mineral de macieira. VI. acúmulos de nutrientes pelos frutos

A trial was conducted on Latossol Vermelho Escuro orto (Orthox) at Buri, State of São Paulo, in order to obtain informations concerning the extraction of nutrients by the fruits at different ages of the varieties 'Ohio Beauty' and 'Brasil'. Fruits collected were 20, 40, 60, 80, 100, and 120 days old. The material was collected from 'Ohio Beauty' and 'Brasil' apples grafeted on 'Doucin', 1-2; 3-4; 4-5 and 6-7 years old, and analysed for: N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn contents. Differences were observed between the two varieties concerning the fruit growth period. The maximum accumulation of the nutrients by the fruits occured at 103-120 days after the blooming stage. The extraction of nutrients by the fruits obeyed the folllowing order: K>;N>;P>;S>;Ca>;Mg>;Fe>;B>;Cu>; Mn>; Zn.Numa plantação de macieira, constituída dos cultivares 'Ohio Beauty' e 'Brasil', localizada em um Latossol Vermelho Escuro Orto no município de Buri, SP, foram coletados frutos com a idade de 20 a 120 dias de arvores com 1,5; 3,5; 4,5 e 6,5 anos de idade. O material coletado após secagem a 80°C foi analisado para N, P, K, Ca, Mg, S, B, Cu, Fe, Mn e Zn. Os autores concluiram que os cultivares diferem na extração de nutrientes nos frutos coletados em diferentes estádios de desenvolvimento. Os acúmulos máximos de nutrientes nos frutos ocorrem entre 103 e 120 dias após o florescimento. As épocas de máxima velocidade de acumulação de nutrientes pelos frutos situan-se entre 59 e 100 dias após o florescimento

Large atom number dual-species magneto-optical trap for fermionic 6Li and 40K atoms

We present the design, implementation and characterization of a dual-species magneto-optical trap (MOT) for fermionic 6Li and 40K atoms with large atom numbers. The MOT simultaneously contains 5.2x10^9 6Li-atoms and 8.0x10^9 40K-atoms, which are continuously loaded by a Zeeman slower for 6Li and a 2D-MOT for 40K. The atom sources induce capture rates of 1.2x10^9 6Li-atoms/s and 1.4x10^9 40K-atoms/s. Trap losses due to light-induced interspecies collisions of ~65% were observed and could be minimized to ~10% by using low magnetic field gradients and low light powers in the repumping light of both atomic species. The described system represents the starting point for the production of a large-atom number quantum degenerate Fermi-Fermi mixture

Um balanço das políticas do governo Lula para a educação superior: continuidade e ruptura

Resumo O trabalho apresenta e analisa as principais políticas para o setor privado de educação superior adotadas pelo governo de Luiz Inácio Lula da Silva (2003/2010). A partir de uma retrospectiva histórica e de uma análise de sua implementação, as políticas são consideradas por meio de uma revisão crítica da literatura e dos dados oficiais. O trabalho demonstra que, apesar de ter realizado políticas para o setor público bastante distintas das do governo de Fernando Henrique Cardoso, no caso do setor privado, há antes um aprofundamento das opções políticas já desenvolvidas durante o governo de Cardoso. Essas opções se traduzem em ações de fomento ao desenvolvimento do setor privado, na medida em que ampliaram o financiamento deste e consolidaram um marco legal que proporcionou segurança jurídica às mantenedoras. Esse fomento, entretanto, veio acompanhado de um sensível aumento e aperfeiçoamento dos mecanismos de controle sobre o crescimento do setor privado

Measurement of the cross section for isolated-photon plus jet production in pp collisions at √s=13 TeV using the ATLAS detector

The dynamics of isolated-photon production in association with a jet in proton–proton collisions at a centre-of-mass energy of 13 TeV are studied with the ATLAS detector at the LHC using a dataset with an integrated luminosity of 3.2 fb−1. Photons are required to have transverse energies above 125 GeV. Jets are identified using the anti- algorithm with radius parameter and required to have transverse momenta above 100 GeV. Measurements of isolated-photon plus jet cross sections are presented as functions of the leading-photon transverse energy, the leading-jet transverse momentum, the azimuthal angular separation between the photon and the jet, the photon–jet invariant mass and the scattering angle in the photon–jet centre-of-mass system. Tree-level plus parton-shower predictions from Sherpa and Pythia as well as next-to-leading-order QCD predictions from Jetphox and Sherpa are compared to the measurements

Measurement of W± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector

See paper for full list of authors - 17 pages plus author list + cover pages (34 pages total), 5 figures, 3 tables, submitted to Phys. Lett. B, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2015-03/International audienceMeasurements of the $W^{\pm} \rightarrow \ell^{\pm} \nu$ and $Z \rightarrow \ell^+ \ell^-$ production cross sections (where $\ell^{\pm}=e^{\pm},\mu^{\pm}$) in proton-proton collisions at $\sqrt{s}=13$ TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb$^{-1}$. The total inclusive $W^{\pm}$-boson production cross sections times the single-lepton-flavour branching ratios are $\sigma_{W^+}^{tot}= 11.78 \pm 0.02 (stat) \pm 0.32 (sys) \pm 0.59 (lumi)$ nb and $\sigma_{W^-}^{tot} = 8.75 \pm 0.02 (stat) \pm 0.24 (sys) \pm 0.44 (lumi)$ nb for $W^+$ and $W^-$, respectively. The total inclusive $Z$-boson production cross section times leptonic branching ratio, within the invariant mass window $66 < m_{\ell\ell} < 116$ GeV, is $\sigma_{Z}^{tot} = 1.97 \pm 0.01 (stat) \pm 0.04 (sys) \pm 0.10 (lumi)$ nb. The $W^+$, $W^-$, and $Z$-boson production cross sections and cross-section ratios within a fiducial region defined by the detector acceptance are also measured. The cross-section ratios benefit from significant cancellation of experimental uncertainties, resulting in $\sigma_{W^+}^{fid}/\sigma_{W^-}^{fid} = 1.295 \pm 0.003 (stat) \pm 0.010 (sys)$ and $\sigma_{W^{\pm}}^{fid}/\sigma_{Z}^{fid} = 10.31 \pm 0.04 (stat) \pm 0.20 (sys)$. Theoretical predictions, based on calculations accurate to next-to-next-to-leading order for quantum chromodynamics and next-to-leading order for electroweak processes and which employ different parton distribution function sets, are compared to these measurements

A search for resonances decaying into a Higgs boson and a new particle X in the XH → qqbb final state with the ATLAS detector

A search for heavy resonances decaying into a Higgs boson (H) and a new particle (X) is reported, utilizing 36.1 fb−1 of proton–proton collision data at collected during 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. The particle X is assumed to decay to a pair of light quarks, and the fully hadronic final state is analysed. The search considers the regime of high XH resonance masses, where the X and H bosons are both highly Lorentz-boosted and are each reconstructed using a single jet with large radius parameter. A two-dimensional phase space of XH mass versus X mass is scanned for evidence of a signal, over a range of XH resonance mass values between 1 TeV and 4 TeV, and for X particles with masses from 50 GeV to 1000 GeV. All search results are consistent with the expectations for the background due to Standard Model processes, and 95% CL upper limits are set, as a function of XH and X masses, on the production cross-section of the resonance

Search for H→γγ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector

A search is performed for Higgs bosons produced in association with top quarks using the diphoton decay mode of the Higgs boson. Selection requirements are optimized separately for leptonic and fully hadronic final states from the top quark decays. The dataset used corresponds to an integrated luminosity of 4.5 fb−14.5 fb−1 of proton–proton collisions at a center-of-mass energy of 7 TeV and 20.3 fb−1 at 8 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess over the background prediction is observed and upper limits are set on the tt¯H production cross section. The observed exclusion upper limit at 95% confidence level is 6.7 times the predicted Standard Model cross section value. In addition, limits are set on the strength of the Yukawa coupling between the top quark and the Higgs boson, taking into account the dependence of the tt¯H and tH cross sections as well as the H→γγ branching fraction on the Yukawa coupling. Lower and upper limits at 95% confidence level are set at −1.3 and +8.0 times the Yukawa coupling strength in the Standard Model