A Paratuberculose, conhecida também como Doença de Johne, é uma afeção infecciosa que provoca uma enterite granulomatosa crónica causada pelo agente Mycobacterium avium subespécie paratuberculosis (Map). É uma doença de carácter contagioso, de distribuição mundial, atingindo os mamíferos, particularmente os pequenos e grandes ruminantes, equinos, suínos, búfalos, coelhos, etc. Tem um grande impacto económico, n...
Tese de mestrado integrado. Engenharia Electrotécnica e de Computadores. Faculdade de Engenharia. Universidade do Porto. 2012
Tese de mestrado. Mestrado Integrado em Engenharia Mecânica. Faculdade de Engenharia. Universidade do Porto. 2012
After the analysis of the criterion of toxicological classification (TC) of pesticides to honeybees and of the evolution of TC and of legislation related to the theme, in Portugal, it is demonstrated how the absence of rigor of the Portuguese Pesticide Regulation Authority (AFN) and of the pesticides suppliers contribute to the very high probability of mortality of honeybees by pesticides and finally are presen...
The very deficient information from the Portuguese Pesticides Regulation Authority (AFN) and the pesticides suppliers about toxicological classification of pesticides has occurred since 2005 and is confirmed by this study concerning the 306 active ingredients (a.i.) authorized in 2011. The systematic smaller number of a.i. with dangerous toxicological classifications adopted by AFN in contrast with EFSA is alwa...
The Portuguese Pesticide Regulation Authority (AFN) classifies the fungicide MANCOZEB as Harmful (Xn) or Irritant (Xi), ignoring that: in UE, the European Food Safety Authority (EFSA) classify, beyond Xi, as R63 – Possible risk of harm to the unborn child; and, in the USA, the Environmental Protection Agence (EPA) classify as Carcinogenic (Probable human carcinogen). These reality justify that mancozeb is a opt...
A Thesis submitted for the co-tutelle degree of Doctor in Physics at Universidade Nova de Lisboa and Université Pierre et Marie Curie ; One active topic in Atomic Physics is the study of highly charged ions (HCI). These physical systems have a strong Coulomb field that provides a unique opportunity to investigate and validate relativistic, Quantum ElectroDynamics (QED), and many-body e ects. Moreover, fundamen...
To reduce bee poisoning by pesticides it is very important: to know the hazard classification (HC) to allow the selection of the less dangerous pesticides; and the adoption of the safety precautions (SP), as SPe8, namely Do not apply to crops in flower or when flowering weeds are present, already recommended by the Laboratório de Fitofarmacologia in 1965, almost 50 years. The graves official and pesticides supp...
To perform pesticide risk communication, namely concerning new toxicological, ecotoxicological and environmental knowledge, consequence of the Directive 91/414/CEE, it is indispensable to secure the convenient divulgation, in the Pesticide Guides of DGPC and of Pesticide Companies, overtaking their actual SILENCE, almost generalized about these problems. With this paper we seek to give that information concerni...
During the last 17 years was intensified, by the Nacional Pesticides Authority and the pesticides industry, the pesticide designation tabu and the tabu concerning, the hazard classification of pesticides with specific effects on human health and the risk phrases.The warning about the inconvenients of the last tabu concerning the high probability of occurrence of unacceptable risk to human health was insufficien...
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