Custos de produção de leite de cabra no polo do Cariri Paraibano, PB.

A determinação dos custos de produção, em conjunto com informações detalhadas das propriedades, no que diz respeito às suas benfeitorias e infraestruturas empregadas na atividade produtiva, bem como às características zootécnicas do rebanho, no caso da pecuária, tem sido uma ferramenta importante na análise de viabilidade econômica dos sistemas de produção nos diferentes polos de produção do país. A determinação dos custos de produção da caprinocultura leiteira na região do Cariri Paraibano realizado em Monteiro-PB no mês de outubro de 2018, apresentada nesta nota técnica, foi obtido utilizando a metodologia de painéis, onde especialistas, técnicos e produtores, estimam os custos a partir do referencial tecnológico de uma propriedade modal da região, ou seja, a partir das características das propriedades predominantes (mais comum) observadas na região produtora.A seguir apresenta-se as principais informações obtidas no painel de custos de produção de leite de cabra nesta região produtora, enfatizando as principais características da propriedade, o sistema de produção, os custos fixos e variáveis e os indicadores de econômicos da atividade

Caracterização ecofisiológica de cultivares de bananeira sob irrigação.

A identificação de genótipos de bananeira tolerantes ao estresse hídrico é uma etapa importante no melhoramento genético, visto que uma parcela significativa dos bananais não é irrigado, embora estejam em regiões com baixa incidência de chuvas, sobretudo, na região semiárida do Nordeste do país. A quantidade de chuvas necessárias ao bom desenvolvimento e produção de bananas está em torno de 1.900 mm por ano, bem distribuídos

Water use efficiency in bananas pome type cropsusing empirical coefficient based on leaf area.

The aim of this work was to evaluate the yield and water use efficiency (WUE) of banana ?Prata-Anã? (AAB) and ?BRS Platina? (AAAB) during two cycles of production in a semi-arid climate of Brazil (classified as Aw according Köppen)

Parameter estimation with the current generation of phenomenological waveform models applied to the black hole mergers of GWTC-1

We consider the ten confidently detected gravitational-wave signals in theGWTC-1 catalog which are consistent with mergers of binary black hole systems,and perform a thorough parameter estimation re-analysis. This is made possibleby using computationally efficient waveform models of the current (fourth)generation of the IMRPhenom family of phenomenological waveform models, whichconsists of the IMRPhenomX frequency-domain modelsand the IMRPhenomTtime-domain models. The analysis is performed with both precessing andnon-precessing waveform models with and without subdominant spherical harmonicmodes. Results for all events are validated with convergence tests, discussingin particular the events GW170729 and GW151226. For the latter and the othertwo lowest-mass events, we also compare results between two independentsampling codes, Bilby and LALInference. We find overall consistent results withthe original GWTC-1 results, with all Jensen-Shannon divergences between theprevious results using IMRPhenomPv2 and our default IMRPhenomXPHM posteriorsbelow 0.045 bits, but we also discuss cases where including subdominantharmonics and/or precession influences the posteriors.<br

New twists in compact binary waveform modeling: A fast time-domain model for precession

We present IMRPhenomTPHM, a phenomenological model for the gravitational wave signals emitted by the coalescence of quasi-circular precessing binary black holes systems. The model is based on the "twisting up" approximation, which maps non-precessing signals to precessing ones in terms of a time dependent rotation described by three Euler angles, and which has been utilized in several frequency domain waveform models that have become standard tools in gravitational wave data analysis. Our model is however constructed in the time domain, which allows several improvements over the frequency domain models: we do not use the stationary phase approximation, we employ a simple approximation for the precessing Euler angles for the ringdown signal, and we implement a new method for computing the Euler angles through the evolution of the spin dynamics of the system, which is more accurate and also computationally efficient

Time-domain phenomenological model of gravitational-wave subdominant harmonics for quasicircular nonprecessing binary black hole coalescences

In this work we present an extension of the time domain phenomenological model IMRPhenomT for gravitational wave signals from binary black hole coalescences to include subdominant harmonics, specifically the $(l=2, m=\pm 1)$, $(l=3, m=\pm 3)$, $(l=4, m=\pm 4)$ and $(l=5, m=\pm 5)$ spherical harmonics. We also improve our model for the dominant $(l=2, m=\pm 2)$ mode and discuss mode mixing for the $(l=3, m=\pm 2)$ mode. The model is calibrated to numerical relativity solutions of the full Einstein equations up to mass ratio 18, and to numerical solutions of the Teukolsky equations for higher mass ratios. This work complements the latest generation of traditional frequency domain phenomenological models (IMRPhenomX), and provides new avenues to develop computationally efficient models for gravitational wave signals from generic compact binaries

Implications of Form Invariance to the Structure of Nonextensive Entropies

The form invariance of the statement of the maximum entropy principle and the metric structure in quantum density matrix theory, when generalized to nonextensive situations, is shown here to determine the structure of the nonextensive entropies. This limits the range of the nonextensivity parameter to so as to preserve the concavity of the entropies. The Tsallis entropy is thereby found to be appropriately renormalized.Comment: 8 page

Descrição das fases do desenvolvimento reprodutivo da mamoneira visando ao manejo da colheita.

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