Genotypic variation for carotenoids content and chemometric model development for seed quality parameters in wheat

Published online: 19 August 2015Among the groups of naturally occurring pigments, carotenoids serve numerous purposes in plants, including antioxidant activity and protection of the photosynthetic apparatus from the excess of light. Alongside with essential mineral elements, these pigments are well known to have high impact on human health. Therefore, accumulation of carotenoids in wheat grain is an important trait in view to improving nutritional value of cereals. Wheat is one of the major staple foods in Portugal because of its agronomical adaptability and the usage of its flour into various traditional products. In the present investigation, the seeds of ninety-four Old Portuguese wheat cultivars grown over two years were analysed. Significant genetic variability for content of carotenoids was observed in the studied lines. Within the 47 bread wheat genotypes the Yellow Pigment Content (YPC) values varied from 2.7 - 5.8 μg/g and 3.0 - 8.0 μg/g for 2004/2005 and 2009/2010, respectively. On the other hand, during 2004/2005 and 2009/2010, the 47 durum wheat cultivars exhibited the YPC values from 1.1 - 8.0 μg/g and 3.4 - 8.3 μg/g, respectively. In addition, multivariate methods were also explored to assess the wheat grains quality, resorting to FTIR spectroscopy (Figure 1). Preliminary analyses of FTIR spectra clearly revealed differences among the distinct studied genotypes. Thus, in order to find spectroscopical patterns related to carotenoids accumulation and antioxidant activity, efforts are being made to develop a model that will allow the assessment of these parameters through FTIR, in the near-future

Secagem de lenha de Eucalyptus dunnii ao ar livre para energia.

Resumo

A machine learning approach for collaborative robot smart manufacturing inspection for quality control systems1-10

The 4th industrial revolution promotes the automatic inspection of all products towards a zero-defect and high-quality manufacturing. In this context, collaborative robotics, where humans and machines share the same space, comprises a suitable approach that allows combining the accuracy of a robot and the ability and flexibility of a human. This paper describes an innovative approach that uses a collaborative robot to support the smart inspection and corrective actions for quality control systems in the manufacturing process, complemented by an intelligent system that learns and adapts its behavior according to the inspected parts. This intelligent system that implements the reinforcement learning algorithm makes the approach more robust once it can learn and be adapted to the trajectory. In the preliminary experiments, it was used a UR3 robot equipped with a Force-Torque sensor that was trained to perform a path regarding a product quality inspection task. © 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the FAIM 2021.This work has been supported by FCT – Fundação para a Ciência e Tecnologia within the Project Scope: UIDB/05757/2020info:eu-repo/semantics/publishedVersio

Social media: friend or foe in the COVID-19 pandemic?

Submitted by Raphael Belchior ([email protected]) on 2020-05-20T16:12:39Z No. of bitstreams: 1 1807-5932-clin-75-e1953.pdf: 128147 bytes, checksum: 10a855d459c314e6c24aed9a73bba53c (MD5)Approved for entry into archive by Raphael Belchior ([email protected]) on 2020-05-20T22:59:59Z (GMT) No. of bitstreams: 1 1807-5932-clin-75-e1953.pdf: 128147 bytes, checksum: 10a855d459c314e6c24aed9a73bba53c (MD5)Made available in DSpace on 2020-05-20T23:00:00Z (GMT). No. of bitstreams: 1 1807-5932-clin-75-e1953.pdf: 128147 bytes, checksum: 10a855d459c314e6c24aed9a73bba53c (MD5) Previous issue date: 2020Montefiore Medical Center. Department of Surgery. The Bronx, NY, USA.Real Hospital Português. Cardiologia. Recife, PE, Brasil.Fundação Oswaldo Cruz. Instituto Aggeu Magalhaes. Departamento de Saúde Coletiva. Recife, PE, Brasil

Estudo dos agentes causais de diarreia em crianças menores de 5 anos no Hospital Geral do Bengo

A diarreia pode ser causada por vírus, parasitas e bactérias e constitui uma das principais causas de doença e morte em crianças menores de cinco anos em Angola. O presente estude assume como principal objectivo identificar os agentes patogénicos causadores de diarreia em crianças admitidas no Hospital Geral do Bengo

Estudo dos agentes causais de diarreia em crianças menores de 5 anos no Hospital Geral do Bengo

A diarreia pode ser causada por vírus, parasitas e bactérias e constitui uma das principais causas de doença e morte em crianças menores de cinco anos em Angola. O presente estude assume como principal objectivo identificar os agentes patogénicos causadores de diarreia em crianças admitidas no Hospital Geral do Bengo