Pulverizações foliares de cálcio em pessegueiros cultivados na Serra Gaúcha do Rio Grande do Sul e alterações no teor de nutrientes na folha, no fruto e rendimento.

bitstream/CNPUV/9556/1/cot081.pd

Modos de distribuição de composto orgânico em viníferas.

O presente trabalho teve por objetivo avaliar o efeito da distribuição do composto orgânico sobre a produção e a composição do mosto da uva de videiras Cabernet Sauvignon.bitstream/item/48507/1/Comunicado-Tecnico-104.pd

Teaching as a system: COVID-19 as a lens into teacher change

In the spring of 2020, schools and universities around the world were closed because of the COVID-19 pandemic. The relative lockdown affected more than 1.5 billion learners as teachers and students sheltered at home for several weeks. As schooling moved online, teachers were forced to change how they taught. In the research presented here, we focus on university mathematics professors, and we analyze how their practice, knowledge, and beliefs intertwine and change under these circumstances. More specifically, the context of the pandemic and the relative lockdown provides us with the experimental basis to argue that the new practice affected both knowledge and beliefs of mathematics teachers and that practice, knowledge, and beliefs form a system. Being part of a system, the reactions to change in practice can be of two types, namely, the system as a whole tries to resist change, or the system as a whole changes - and it changes significantly. The research presented here proposes a model for describing and analyzing what we called a teaching system and examines three cases that help to better depict the systemic nature of teaching

Integrated Near-Infrared Band Strengths of Solid CH4 and Its Mixtures with N2

We studied icy CH4 and its mixtures with N2 (temperature 16-40 K), using near-IR transmittance spectroscopy (1.0-3.6 μm), and monitoring the film growth using interference patterns of two lasers. We measured peak position, full width at half-maximum, and strengths of the methane bands, and density and real refractive index of the icy films. Results confirm and extend but also partially contradict previous studies on similar mixtures. Experimental data can be applied to interpret observations of solar system (trans-Neptunian objects) and interstellar ices, where methane and nitrogen are believed to be present. We predict the optical depths of two methane NIR bands in the line of sight of some dense molecular clouds

Produção de matéria seca dos componentes vegetais do milheto em diferentes níveis de disponibilidade hídrica e níveis de corte.

CONGREGA 2012

Produção de matéria seca de folhas de milheto em condição de estresse hídrico e níveis de corte.

Congrega 2012

Análise da altura das plantas de milheto (Pennisetum glaucum) quando submetidadas a diferentes níveis de cortes e estresse hídrico.

CONGREGA 2012. Título: submetidadas [i.e. submetidas]