Water footprint of irrigated rice in the state of Rio Grande do Sul, 2019/2020 crop.

Agricultural production is the practice that uses the most water on the planet, especially the irrigated agriculture, which represents a large part of this demand. As well as the quantitative issue, adequate quality is essential to meet the demands of the crop and its return to the water sources, in a way that does not cause damage to the environment. To measure this consumption, the expression "water footprint" emerged.

Phosphorus availability and microbial immobilization in a Nitisol with the application of mineral and organo-mineral fertilizers.

The aim of this study was to evaluate P availability, P and C contained in the microbial biomass, and enzymatic activity (acid phosphatases and β-glucosidases) in a Nitisol with the application of mineral and organo-mineral fertilizers. The experiment was performed in a protected environment with control over air temperature and soil moisture. The experimental design was organized in a "5 x 4" factorial arrangement with five sources of P and four times of soil incubation.

[Alice in Wonderland syndrome as persistent aura of migraine and migraine disease starting].

Introduction: Migraine with aura in children is often described, but communications of typical aura without headache are rare, and persistent aura and Alice in Wonderland syndrome are exceptional.

Case Report: A 8 years-old girl who experiences during a month one to three brief episodes a day during which she relates: 'I saw things as little and remote, sometimes they moved; one day I saw my sister's books turning bigger, and another day my father getting little as a doll; sometimes my doll's leg swinged, or the blind in the window got up and down'. Later these attacks spaced out to one each to days for another two weeks.

Characterization of the Desulfovibrio desulfuricans ATCC 27774 DsrMKJOP complex--a membrane-bound redox complex involved in the sulfate respiratory pathway.

Sulfate-reducing organisms use sulfate as an electron acceptor in an anaerobic respiratory process. Despite their ubiquitous occurrence, sulfate respiration is still poorly characterized. Genome analysis of sulfate-reducing organisms sequenced to date permitted the identification of only two strictly conserved membrane complexes.

A novel membrane-bound respiratory complex from Desulfovibrio desulfuricans ATCC 27774.

In the anaerobic respiration of sulfate, performed by sulfate-reducing prokaryotes, reduction of the terminal electron acceptor takes place in the cytoplasm. The membrane-associated electron transport chain that feeds electrons to the cytoplasmic reductases is still very poorly characterized. In this study we report the isolation and characterization of a novel membrane-bound redox complex from Desulfovibrio desulfuricans ATCC 27774.