Biostimulants in the development of tomato and collard greens seedlings

The success of crop yields begins with the use of quality seedlings. Crops from vigorous plants respond better to phytosanitary treatments and management techniques, resulting in economic returns and better use of inputs. The objective of this study was to evaluate NPK fertilizer rates and rates of an NPK + auxin biostimulant on the effects over agronomic features of Collard Greens and salad tomato seedlings. The research consisted of two experiments in randomized block, with four replications each. Both experiments were in factorial scheme 2 x 4, consisting of the combination of two nutrient sources (NPK fertilizer 9-45-11 and biostimulant composed of NPK 9-45-11 + 400 mg kg -1 of auxin IAA), and four rates, being then 50; 100; 150 and 200% of the recommended rate of biostimulant for tomato and 50; 75; 100 and 125% of the recommended rate for Collard Greens. The biostimulant favored the development of tomato seedlings, since it provides greater root dry mass accumulation and didn’t promote seedling shedding, as it occurred in the application of NPK fertilizers. On the other hand, the Collard Greens seedlings didn’t distinguish by the presence of auxin in the biostimulant, developing greater seedlings heights with NPK application. Concentrations of 50-200% of the recommended biostimulant fertilizer didn’t interfere on root length, diameter and root dry mass of Collard Greens

Hadronic Masses and Regge Trajectories

A comprehensive phenomenological analysis of experimental data and some theoretical models is presented here (for mesons) to critically discuss how Regge trajectory parameters depend on flavor. Through analytic continuation of physical trajectories (obtained from resonance data) into the space like region, we derive the suppression factor for heavy flavor production. The case of our D Regge exchange, both for D and $\Lambda_c$ production, is considered in some detail. Good agreement with data is reached confirming that indeed the slopes of heavier flavors decrease. This result suggests that the confinement potential has a substantial dependence on the quark masses. In a simple non-relativistic model, constrained to produce linear Regge trajectories, it is shown that a linear quark mass dependence is required (in the confinement part of the potential) in order for the slope to decrease in the appropriate way.Comment: 19 pages, 9 Figures, IV Table

Análise preliminar da resposta clínica de pacientes com faringotonsilite estreptocócica: comparação entre amoxicilina administrada duas vezes ao dia com amoxicilina três vezes ao dia

OBJECTIVES: To compare the efficacy and tolerance of two posologic amoxicillin schemes in children with tonsillopharyngitis: 45 mg/kg/day in two doses (bid) and 40 mg/kg/day in three doses (tid). MATERIALS AND METHODS: We conducted a multicentric, randomized, single-blinded study, comparing two parallel groups. One hundred and seventy-one ambulatrial patients with ages between 2 and 12 years presenting acute bacterial tonsillopharyngitis were admitted in this study. Patients were evaluated in the selection visit, within threedays of treatment, at the end of treatment and within 28 days after entering the study in order to verify clinical response, possible adverse effects, bacteriological response, and tolerabilty of the medication.RESULTS: The preliminary analysis of the 171 patients, 86 randomized to “treatment A” group and 85 to “treatment B”, indicates that in the final visit, 83 “treatment A” patients (96.5%) and 82 patients (96.5%) ”treatament B” patients presented clinical criteria of cure.CONCLUSION: The present data suggest that the therapeutic scheme of amoxicillin administrated twice daily (bd) is as efficient as the three times per day scheme (tid) for the treatament of these patients, with the possible advantage of a greater adherence of patients to the treatment. OBJETIVO: Comparar a eficácia e a tolerabilidade de dois esquemas posológicos de amoxicilina: 45 mg/kg/dia divididos em duas doses (bd) e 40 mg/kg/dia divididos em três doses (tid) no tratamento de crianças com faringotonsilite bacteriana aguda.MÉTODOS: Estudo multicêntrico, observador-cego, randomizado, comparativo de grupos paralelos. Cento e setenta e um pacientes ambulatoriais com idade entre 2 e 12 anos apresentando quadro de faringotonsilite bacteriana aguda foram admitidos no estudo. Além da visita de seleção, os pacientes foram avaliados com 3 dias de tratamento, no final do tratamento e com 28 dias após a admissão no estudo para verificar a resposta clínica, ocorrência de efeitos adversos, resposta bacteriológica e tolerabilidade da medicação.RESULTADOS: A análise preliminar dos 171 pacientes, 86 randomizados para o grupo “tratamento A” e 85 para grupo “tratamento B”, indica que na visita de final detratamento, 83 pacientes (96,5%) do grupo “tratamento A” e 82 pacientes (96,5%) do grupo “tratamento B” apresentaram critérios clínicos de cura.CONCLUSÃO: Os dados apresentados sugerem que o regime terapêutico de amoxicilina administrada duas vezes ao dia (bd) é tão eficaz quanto o regime deamoxicilina administrada três vezes por dia (tid) para o tratamento destes pacientes, com a vantagem de poder determinar maior adesão dos doentes ao tratamento

On asymmetry in inclusive pion production

On the basis of the mechanism proposed for one-spin asymmetries in inclusive hadron production we specify an $x$--dependence of asymmetries in inclusive processes of pion production. The main role in generation of this asymmetry belongs to the orbital angular momentum ofquark-antiquark cloud in internal structure of constituent quarks. The $x$--dependence of asymmetries in the charged pion production at large $x$ reflects the corresponding dependence of constituent quark polarization in the polarized proton.Comment: LaTeX, 8 pages, 3 figures. One figure added, as it appears in Phys. Rev.

First results of the Instrumentation Line for the deep-sea ANTARES neutrino telescope

In 2005, the ANTARES Collaboration deployed and operated at a depth of 2500 m a so-called Mini Instrumentation Line equipped with Optical Modules (MILOM) at the ANTARES site. The various data acquired during the continuous operation from April to December 2005 of the MILOM confirm the satisfactory performance of the Optical Modules, their front-end electronics and readout system. as well as the calibration devices of the detector. The in situ measurement of the Optical Module time response yields a resolution better than 0.5 ns. The performance of the acoustic positioning system, which enables the spatial reconstruction of the ANTARES detector with a precision of about 10 cm, is verified. These results demonstrate that with the full ANTARES neutrino telescope the design angular resolution of better than 0.3 degrees can be realistically achieved

Análise preliminar da resposta clínica de pacientes com faringotonsilite estreptocócica: comparação entre amoxicilina administrada duas vezes ao dia com amoxicilina três vezes ao dia

OBJECTIVES: To compare the efficacy and tolerance of two posologic amoxicillin schemes in children with tonsillopharyngitis: 45 mg/kg/day in two doses (bid) and 40 mg/kg/day in three doses (tid). MATERIALS AND METHODS: We conducted a multicentric, randomized, single-blinded study, comparing two parallel groups. One hundred and seventy-one ambulatrial patients with ages between 2 and 12 years presenting acute bacterial tonsillopharyngitis were admitted in this study. Patients were evaluated in the selection visit, within threedays of treatment, at the end of treatment and within 28 days after entering the study in order to verify clinical response, possible adverse effects, bacteriological response, and tolerabilty of the medication.RESULTS: The preliminary analysis of the 171 patients, 86 randomized to “treatment A” group and 85 to “treatment B”, indicates that in the final visit, 83 “treatment A” patients (96.5%) and 82 patients (96.5%) ”treatament B” patients presented clinical criteria of cure.CONCLUSION: The present data suggest that the therapeutic scheme of amoxicillin administrated twice daily (bd) is as efficient as the three times per day scheme (tid) for the treatament of these patients, with the possible advantage of a greater adherence of patients to the treatment. OBJETIVO: Comparar a eficácia e a tolerabilidade de dois esquemas posológicos de amoxicilina: 45 mg/kg/dia divididos em duas doses (bd) e 40 mg/kg/dia divididos em três doses (tid) no tratamento de crianças com faringotonsilite bacteriana aguda.MÉTODOS: Estudo multicêntrico, observador-cego, randomizado, comparativo de grupos paralelos. Cento e setenta e um pacientes ambulatoriais com idade entre 2 e 12 anos apresentando quadro de faringotonsilite bacteriana aguda foram admitidos no estudo. Além da visita de seleção, os pacientes foram avaliados com 3 dias de tratamento, no final do tratamento e com 28 dias após a admissão no estudo para verificar a resposta clínica, ocorrência de efeitos adversos, resposta bacteriológica e tolerabilidade da medicação.RESULTADOS: A análise preliminar dos 171 pacientes, 86 randomizados para o grupo “tratamento A” e 85 para grupo “tratamento B”, indica que na visita de final detratamento, 83 pacientes (96,5%) do grupo “tratamento A” e 82 pacientes (96,5%) do grupo “tratamento B” apresentaram critérios clínicos de cura.CONCLUSÃO: Os dados apresentados sugerem que o regime terapêutico de amoxicilina administrada duas vezes ao dia (bd) é tão eficaz quanto o regime deamoxicilina administrada três vezes por dia (tid) para o tratamento destes pacientes, com a vantagem de poder determinar maior adesão dos doentes ao tratamento