Statistical Mechanics Characterization of Neuronal Mosaics

The spatial distribution of neuronal cells is an important requirement for achieving proper neuronal function in several parts of the nervous system of most animals. For instance, specific distribution of photoreceptors and related neuronal cells, particularly the ganglion cells, in mammal's retina is required in order to properly sample the projected scene. This work presents how two concepts from the areas of statistical mechanics and complex systems, namely the \emph{lacunarity} and the \emph{multiscale entropy} (i.e. the entropy calculated over progressively diffused representations of the cell mosaic), have allowed effective characterization of the spatial distribution of retinal cells.Comment: 3 pages, 1 figure, The following article has been submitted to Applied Physics Letters. If it is published, it will be found online at http://apl.aip.org

Internal devaluation and economic inequality in Portugal: challenges to industrial relations in times of crisis and recovery

Internal devaluation policies imposed in southern European countries since 2010 have weakened labour market institutions and intensified wage inequality and the falling wage share. The debate in the wake of the financial and economic crisis raised concerns about slow wage growth and per- sistent economic inequality. This article attempts to shed light on this debate, scrutinising the case of Portugal in the period 2010–2017. Mapping the broad developments at the national level, the article examines four sectors, looking in particular at the impact of minimum wages and collective bargaining on wage trends vis-a`-vis wage inequality and wage share trajectories. We conclude that both minimum wage increases and the slight recovery of collective bargaining had a positive effect on wage outcomes and were important in reducing wage inequality. The extent of this reduction was limited, however, by uneven sectoral recovery dynamics and the persistent effects of pre- carious work, combined with critical liberalisation reforms.info:eu-repo/semantics/acceptedVersio

Qualidade e conservação pó-scolheita de cultivares de cebola submetidas a doses de potássio em cultivo orgânico, no Vale do São Francisco.

O objetivo deste trabalho foi avaliar a influencia de diferentes doses de potássio em cultivo orgânico sobre a qualidade de bulbos de cebola das cultivares Brisa IPA-12, Franciscana IPA-10 e Alfa S„o Francisco, armazenados sob temperatura ambiente

Conservação pós-colheita de cebola 'Botucatu 150' armazenada sob temperatura ambiente.

O objetivo deste estudo foi avaliar a conservação pós-colheita de bulbos de cebola 'Botucatu 150' submetidos à cura por três dias e armazenados a temperatura ambiente (28,2 :t 2,3°C e 46 :t 12% UR). Os bulbos foram avaliados aos 0, 30, 45, 57 e 63 dias, em delineamento inteiramente casualizado com quatro repetições. O armazenamento reduziu a pungência dos bulbos, mantendo a firmeza adequada à comercialização. Porém, estendendo-se o período para mais de 45 dias, observou-se início de crescimento de microrganismos.Suplemento. Edição dos resumos expandidos do 46. Congresso Brasileiro de Olericultura, Goiânia, ago. 2006

Burning of tropical brazilian rainforest of sandy soil: does it affect soil organic matter?

This study aimed to investigate the impact of vegetation burning on the content and chemical composition of soil organic matter (SOM) along a profile of a sandy Acrisol in Southwestern Amazon, Brazil, within 3 years after experiment beginning(YAB).The study was performed in Rio Branco, Acre State, and the forest burning was performed under controlled conditions. Samples from 6 depth(0-100cm depth)were collected under burned forest (BF) and primary forest (PF) at 1 YAB and 3 YAB. Besides Cand N contents, humic substances and biomarkers were determined. Under PF, the C content decreased with depth from 12 to 2 g kg-1.C/N ratio ranged from 7.6 at the surface to values around 3 at 1 m depth, indicating a predominance of microbial products. Humin fraction was not detected in the whole profile. Burning of vegetation promoted an increase of C and of humic acids only at 0-5 cm. The n-alkane distribution showed a shift towards smaller chains in the 0-5 cm of BF, indicating main contribution of microbial products. Also PAH’s of high molecular weight were detected in this site. Vegetation burning imparts alterations on the SOM composition, but these tend to disappear within 3 years

Biomarker analysis in soils of the Amazon rainforest after vegetation fire.

The objective of this study was to determine the origin of organic matter incorporated in Amazon forest soils subjected to vegetation fire by analyzing the aliphatic biomarkers (n-alkanes) present in lipid extracts of soil samples

Fruit quality of Chenin Blanc grape influenced by different rootstocks during a production cycle in the second half.

This study aimed to evaluate the influence of different rootstocks on physico-chemical characteristics of the fruits of Chenin Blanc grapes produced in the second half of the year

Recobrimento de mangas Tommy atkins com suspensões à base de dextrina, carboximetilcelulose e amido de milho.

O objetivo deste trabalho foi avaliar a eficiência da aplicação pós-colheita de suspensões à base de dextrina, CMC e amido de milho na qualidade de mangas Tommy Atkins, durante o armazenamento refrigerado seguido de temperatura ambiente