3121465 documents found, page 311859 of 312147
Growth of number of periodic orbits of one family of skew product maps
Esteves, SaleteIn this article we introduce a one-parameter family of skew product (Gt)t ∈ [−ε, ε] maps exhibiting a heterodimensional cycle such that the number of isolated periodic orbits inside it has not super-exponential growth. The dynamics in the central direction of the maps Gt is described by a one-parameter family of system of iterated functions.
Physiological response of the grapevine cultivars Touriga Nacional and Touriga ...
Ribeiro, A.C.; Barreales, David; Andrade, João Verdial; Rodrigues, M.A.; Blanco-Ward, Daniel; Monteiro, Alexandra; Lopes, Myriam; Borrego, Carlos S.The behaviour of the cultivars Touriga Nacional and Touriga Franca (Vitis vinifera L.), was studied under increasing summer stress conditions across Douro valley in the Demarcated Region of Douro - Portugal. The Douro region is divided into three climatic subregions: Baixo Corgo (BC), Cima Corgo (CC), and Douro Superior (DS) whose weather characteristics are presented and discussed in this study. In the Douro v...
Mycorrhizal inoculation of chestnut seedlings: effect on survival and growth af...
Martins, AnabelaTrees of several species cannot develop without mycorrhizas. The first trials of controlled mycorrhization were made in Australia early in the twentieth century. Mycorrhizal inoculation is based on the main findings: (1) any mycorrhiza is better than none for plants produced in greenhouses/nurseries; (2) some species are more beneficial than others under specific environmental conditions. Building on mycorrhiza...
Acreditação do método de contagem total de Staphylococcus coagulase positiva, d...
Rosário, Stephanie Marlene Pousa doNos dias de hoje, grande parte dos alimentos são processados e fabricados industrialmente e a troca de alimentos a nível global é cada vez maior, aumentando as probabilidades de contaminação se não forem tomadas as medidas adequadas. De forma a proteger a saúde dos consumidores, existe legislação que obriga as empresas a implementar medidas que garantam a segurança e a qualidade dos seus produtos. A realização ...
Manutenção da superfície do solo em olival
Rodrigues, M.A.; Bento, Albino; Lopes, João; Torres, L.; Pereira, J.A.A forma como é mantida a superfície do solo nos olivais tem implicações decisivas no regime hídrico do solo, no estado nutritivo das plantas e, consequentemente na produção. No período de 1996 a 1999 ensaiaram-se três modalidades de manutenção da superfície do solo em olival, designadamente a mobilização tradicional, a utilização de herbicidas e a inclusão de uma sideração de tremoço branco, Os ensaios decorrer...
Autonomous path follow UAV to assist onshore pipe inspection tasks
Sousa, Lucas C.; Silva, Yago M.R. da; Castro, Gabriel G.R.; Souza, Caio L.; Berger, Guido; Lima, José; Brandão, Diego; Dias, João T.; Pinto, Milena F.Unmanned Aerial Vehicles (UAVs) are being deployed in different applications due to their reduced time execution to perform tasks, more extensive coverage area, and more risk minimization to humans. In the Oil & Gas industry, its use for inspection activities is even more attractive due to the large structures in these facilities. Therefore, this research proposes deploying an autonomous UAV system to inspect u...
Removal of quinoline from oily wastewater using biochars prepared from compost
Alves, Giovanna GiacobboThe petrochemical industry is one of the main sources of aquatic pollution, because when its waste is discarded in water resources, the generation of oily wastewater is dangerous to the ecosystem and to human health. Due to the diversified origin of these waters they present an extremely varied composition and they are difficult to treat. Thus, this dissertation aims to evaluate the removal of quinoline, a comp...
Caracterização química de salsichas frescas de ovino e caprino
Eiras, C.E.; Paulos, Kátia; Leite, Ana; Pereira, Etelvina; Rodrigues, Sandra; Teixeira, AlfredoEste trabalho teve como principal objectivo a caracterização físico-química de salsichas frescas à base de carne de ovinos e caprinos, cujos animais excedem o peso e idade exigido pelo caderno de especificações das marcas de qualidade com denominações, DOP ou IGP. Neste sentido o principal objectivo do presente trabalho será demonstrar que a elaboração deste novo produto permite acrescentar valor a animais que ...
Physical function of aged population is predicted by motor competence and physi...
Bezerra, Pedro; Lopes, Vitor P.; Gonçalves, CelinaAdvancing in age indicates a decline in sensorimotor control and functioning
What psych verbs and other verbs disclose about the role of Semantic Prominence...
Rodrigues, Alexandra SoaresThis paper analyses the construction of deverbal adjectives in European Portuguese, focusing on the interface between morphology and semantics, specifically on the role of Thematic Hierarchy and Semantic Prominence on affixal selection. Supported by paradigmatic morphology, the paper shows that suffixes that work in macroparadigms of deverbal adjectives establish a relationship with specific semantic features o...