The Brazilian Pampa biome is currently under constant threat due to increase of agriculture and improper management of urban effluents. Studies with a focus on the assessment of impacts caused by human activities in this biome are scarce. In the present study, we measured stress-related biomarkers in tadpoles of the leaf frog Phyllomedusa iheringii, an endemic species to the Pampa biome, and te...

Today's food and farming systems have succeeded in supplying large volumes of foods to global markets, but are generating negative outcomes on multiple fronts: widespread degradation of land, water and ecosystems; high GHG emissions; biodiversity losses; persistent hunger and micro-nutrient deficiencies alongside the rapid rise of obesity and diet-related diseases; and livelihood stresses for f...

The reaction catalyzed by rabbit muscle creatine kinase ATP + creatine in equilibrium ADP + P-creatine has been investigated by 31P NMR. At pH 8.0 and 4 degrees C, the equilibrium constant of the overall reaction [P1][P2]/[S1] [S2] is found to be 0.08, while that for the interconversion step between enzyme-bound substrates and products [E.P1. P2]/[E.S1.S2] is estimated to be approximately 1; th...

Organic fertilizers are an important source of nutrients for improving farmland fertility. To explore high-yield, efficient and green production technology oilseed flax in dryland agricultural areas, a field split plot experiment was conducted the semi-arid area Loess Plateau northwest China from April to August 2020 2021. The study compared analyzed effects different nutrient sources their app...

This paper deals with the analysis of advanced fade countermeasures for supporting DVB-S2 reception by mobile terminals mounted on high-speed trains. Recent market studies indicate this as a potential profitable market for satellite communications, provided that integration with wireless terrestrial networks can be implemented to bridge the satellite connectivity inside railway tunnels and larg...

introduction although using animal manures and crop residues as a traditional method for increasing soil fertility and crop yield has a long history but conventional agricultural systems rely on the use of chemical fertilizer due to its immediate availability of nutrients. in many of modern agricultural systems using chemical fertilizers as a fast and easiest way to reduce nutrient deficiency a...

The nomenclature used here (see also Fig. S1) was built on classical dental serial homologies. The work of Hershkovitz [2] was a major source for defining homologous structures and naming them, but other sources were also considered [3-7]. These works emphasized dental structures that are expressed as relief on tooth crowns. Structures expressed as depressions, in particular groove systems, wer...

The quality of soil and water, as well the preservation biodiversity, are negatively impacted by intensive agricultural systems. High biodiversity regulates how intercropping evolves. Contrastingly, monocultures used in agriculture systems, along with substantial inputs chemical fertilizers pesticides. One strategy for boosting diversity an ecosystem is intercropping. Intercropping systems impr...

The crystal structure of covellite has been refined, based on counter intensity data, to R=3.9,°-6', using a crystal from Kosaka mine: P63/mmc, a=3.976(1), c=16.382(5)'\, Z=6. The structure proposed by Oftedal (Zeits. Krist., 83, 9-25, 1932) was confirmed. The S-S distance of the S2 groups in the structure is 2.086(7)'\, the Cu-S distance in the CUS3 triangles 2.1915(4)'\, and the mean Cu-S dis...